feat(migrationcenter)!: update the API

BREAKING CHANGE: This release has breaking changes.

#### migrationcenter:v1alpha1

The following keys were deleted:
- schemas.Asset.properties.performanceData.readOnly

The following keys were added:
- schemas.AssetsExportJob.properties.inventory.$ref
- schemas.AssetsExportJob.properties.inventory.description
- schemas.AssetsExportJob.properties.performanceData.$ref
- schemas.AssetsExportJob.properties.performanceData.description
- schemas.AssetsExportJob.properties.showHidden.description
- schemas.AssetsExportJob.properties.showHidden.type
- schemas.AssetsExportJobExecution.properties.requestedAssetCount.description
- schemas.AssetsExportJobExecution.properties.requestedAssetCount.format
- schemas.AssetsExportJobExecution.properties.requestedAssetCount.readOnly
- schemas.AssetsExportJobExecution.properties.requestedAssetCount.type
- schemas.AssetsExportJobExecutionResult.properties.outputFiles.$ref
- schemas.AssetsExportJobExecutionResult.properties.outputFiles.description
- schemas.AssetsExportJobExecutionResult.properties.outputFiles.readOnly
- schemas.AssetsExportJobInventory.description
- schemas.AssetsExportJobInventory.id
- schemas.AssetsExportJobInventory.type
- schemas.AssetsExportJobPerformanceData.description
- schemas.AssetsExportJobPerformanceData.id
- schemas.AssetsExportJobPerformanceData.properties.maxDays.description
- schemas.AssetsExportJobPerformanceData.properties.maxDays.format
- schemas.AssetsExportJobPerformanceData.properties.maxDays.type
- schemas.AssetsExportJobPerformanceData.type
- schemas.ComputeStorageDescriptor.properties.type.readOnly
- schemas.CsvOutputFile.description
- schemas.CsvOutputFile.id
- schemas.CsvOutputFile.properties.columnsCount.description
- schemas.CsvOutputFile.properties.columnsCount.format
- schemas.CsvOutputFile.properties.columnsCount.readOnly
- schemas.CsvOutputFile.properties.columnsCount.type
- schemas.CsvOutputFile.properties.rowCount.description
- schemas.CsvOutputFile.properties.rowCount.format
- schemas.CsvOutputFile.properties.rowCount.readOnly
- schemas.CsvOutputFile.properties.rowCount.type
- schemas.CsvOutputFile.properties.signedUri.$ref
- schemas.CsvOutputFile.properties.signedUri.description
- schemas.CsvOutputFile.properties.signedUri.readOnly
- schemas.CsvOutputFile.type
- schemas.FitDescriptor.properties.fitLevel.readOnly
- schemas.GuestConfigDetails.properties.hosts.readOnly
- schemas.HostsEntryList.properties.entries.readOnly
- schemas.OutputFile.description
- schemas.OutputFile.id
- schemas.OutputFile.properties.csvOutputFile.$ref
- schemas.OutputFile.properties.csvOutputFile.description
- schemas.OutputFile.properties.csvOutputFile.readOnly
- schemas.OutputFile.properties.fileSizeBytes.description
- schemas.OutputFile.properties.fileSizeBytes.format
- schemas.OutputFile.properties.fileSizeBytes.readOnly
- schemas.OutputFile.properties.fileSizeBytes.type
- schemas.OutputFile.type
- schemas.OutputFileList.description
- schemas.OutputFileList.id
- schemas.OutputFileList.properties.entries.description
- schemas.OutputFileList.properties.entries.items.$ref
- schemas.OutputFileList.properties.entries.type
- schemas.OutputFileList.type
- schemas.VirtualMachineArchitectureDetails.properties.cpuThreadCount.deprecated

The following keys were changed:
- schemas.Asset.properties.performanceData.description
- schemas.CloudDatabaseMigrationTarget.properties.cloudSqlForPostgresqlShape.description
- schemas.CloudSqlForPostgreSqlShape.description
- schemas.ComputeStorageDescriptor.properties.type.description
- schemas.DatabasePreferencesCloudSqlCommon.properties.edition.description
- schemas.DatabasePreferencesCloudSqlCommonBackup.properties.backupMode.description
- schemas.FitDescriptor.properties.fitLevel.description
- schemas.GuestConfigDetails.properties.hosts.description
- schemas.HostsEntryList.properties.entries.description
- schemas.ReportSummaryAssetAggregateStats.properties.coreCountHistogram.description
- schemas.ReportSummaryGroupFinding.properties.databaseType.enumDescriptions
- schemas.ReportSummaryGroupPreferenceSetFinding.properties.monthlyCostOsLicense.description
- schemas.VirtualMachineArchitectureDetails.properties.cpuThreadCount.description

#### migrationcenter:v1

The following keys were added:
- schemas.ComputeEngineShapeDescriptor.properties.logicalCoreCount.readOnly
- schemas.ComputeEngineShapeDescriptor.properties.machineType.readOnly
- schemas.ComputeEngineShapeDescriptor.properties.series.readOnly
- schemas.ComputeEngineShapeDescriptor.properties.storage.readOnly
- schemas.ComputeStorageDescriptor.properties.sizeGb.readOnly
- schemas.ComputeStorageDescriptor.properties.type.readOnly
- schemas.FitDescriptor.properties.fitLevel.readOnly
- schemas.MachineArchitectureDetails.properties.cpuThreadCount.deprecated

The following keys were changed:
- schemas.ComputeEngineShapeDescriptor.properties.logicalCoreCount.description
- schemas.ComputeEngineShapeDescriptor.properties.machineType.description
- schemas.ComputeEngineShapeDescriptor.properties.series.description
- schemas.ComputeEngineShapeDescriptor.properties.storage.description
- schemas.ComputeStorageDescriptor.properties.sizeGb.description
- schemas.ComputeStorageDescriptor.properties.type.description
- schemas.FitDescriptor.properties.fitLevel.description
- schemas.MachineArchitectureDetails.properties.cpuThreadCount.description
- schemas.ReportSummaryAssetAggregateStats.properties.coreCountHistogram.description

Author: yoshi-automation

discovery/migrationcenter-v1.json

@@ -2309,7 +2309,7 @@
       }
     }
   },
-  "revision": "20240822",
+  "revision": "20240926",
   "rootUrl": "https://migrationcenter.googleapis.com/",
   "schemas": {
     "AddAssetsToGroupRequest": {
@@ -2850,12 +2850,14 @@
       "id": "ComputeEngineShapeDescriptor",
       "properties": {
         "logicalCoreCount": {
-          "description": "Number of logical cores.",
+          "description": "Output only. Number of logical cores.",
           "format": "int32",
+          "readOnly": true,
           "type": "integer"
         },
         "machineType": {
-          "description": "Compute Engine machine type.",
+          "description": "Output only. Compute Engine machine type.",
+          "readOnly": true,
           "type": "string"
         },
         "memoryMb": {
@@ -2869,14 +2871,16 @@
           "type": "integer"
         },
         "series": {
-          "description": "Compute Engine machine series.",
+          "description": "Output only. Compute Engine machine series.",
+          "readOnly": true,
           "type": "string"
         },
         "storage": {
-          "description": "Compute Engine storage. Never empty.",
+          "description": "Output only. Compute Engine storage. Never empty.",
           "items": {
             "$ref": "ComputeStorageDescriptor"
           },
+          "readOnly": true,
           "type": "array"
         }
       },
@@ -2887,12 +2891,13 @@
       "id": "ComputeStorageDescriptor",
       "properties": {
         "sizeGb": {
-          "description": "Disk size in GiB.",
+          "description": "Output only. Disk size in GiB.",
           "format": "int32",
+          "readOnly": true,
           "type": "integer"
         },
         "type": {
-          "description": "Disk type backing the storage.",
+          "description": "Output only. Disk type backing the storage.",
           "enum": [
             "PERSISTENT_DISK_TYPE_UNSPECIFIED",
             "PERSISTENT_DISK_TYPE_STANDARD",
@@ -2905,6 +2910,7 @@
             "Balanced Persistent Disk.",
             "SSD Persistent Disk."
           ],
+          "readOnly": true,
           "type": "string"
         }
       },
@@ -3377,7 +3383,7 @@
       "id": "FitDescriptor",
       "properties": {
         "fitLevel": {
-          "description": "Fit level.",
+          "description": "Output only. Fit level.",
           "enum": [
             "FIT_LEVEL_UNSPECIFIED",
             "FIT",
@@ -3390,6 +3396,7 @@
             "No Fit.",
             "Fit with effort."
           ],
+          "readOnly": true,
           "type": "string"
         }
       },
@@ -4358,7 +4365,8 @@
           "type": "integer"
         },
         "cpuThreadCount": {
-          "description": "Number of CPU threads allocated to the machine.",
+          "deprecated": true,
+          "description": "Deprecated: use MachineDetails.core_count instead. Number of CPU threads allocated to the machine.",
           "format": "int32",
           "type": "integer"
         },
@@ -5192,7 +5200,7 @@
       "properties": {
         "coreCountHistogram": {
           "$ref": "ReportSummaryHistogramChartData",
-          "description": "Histogram showing a distribution of CPU core counts."
+          "description": "Histogram showing a distribution of logical CPU core counts."
         },
         "memoryBytesHistogram": {
           "$ref": "ReportSummaryHistogramChartData",