Add @Flaky annotation to Databricks product tests

[ebyhr]

Description

Add @Flaky annotation to Databricks product tests
Relates to #14391

Release notes

(x) This is not user-visible or docs only and no release notes are required.

[findinpath]

I've found that the following tests are missing the annotation:

• io.trino.tests.product.deltalake.TestDeltaLakeAlterTableCompatibility#testTrinoAlterTablePreservesTableMetadata
  (probably not needed because it performs only a CREATE TABLE statement on delta )
• io.trino.tests.product.deltalake.TestDeltaLakeAlterTableCompatibility#testTrinoAlterTablePreservesTableMetadata
  (probably not needed because it performs only a CREATE TABLE statement on delta )
• io.trino.tests.product.deltalake.TestDeltaLakeAlterTableCompatibility#testTrinoAlterTablePreservesGeneratedColumn
• io.trino.tests.product.deltalake.TestDeltaLakeDatabricksCheckpointsCompatibility#testTrinoCheckpointNullStatisticsForRowType
• io.trino.tests.product.deltalake.TestDeltaLakeDatabricksCheckpointsCompatibility#testDatabricksCheckpointNullStatisticsForRowType
• io.trino.tests.product.deltalake.TestDeltaLakeDatabricksCheckpointsCompatibility#testTrinoWriteStatsAsJsonDisabled
  (probably not needed)
• io.trino.tests.product.deltalake.TestDeltaLakeDatabricksCheckpointsCompatibility#testDatabricksWriteStatsAsJsonDisabled
  (probably not needed)
• io.trino.tests.product.deltalake.TestDeltaLakeDatabricksCheckpointsCompatibility#testTrinoWriteStatsAsStructDisabled
  (probably not needed)
• io.trino.tests.product.deltalake.TestDeltaLakeDatabricksCheckpointsCompatibility#testDatabricksWriteStatsAsStructDisabled
  (probably not needed)
• io.trino.tests.product.deltalake.TestDeltaLakeDatabricksInsertCompatibility#testCheckConstraintsCompatibility
• io.trino.tests.product.deltalake.TestDeltaLakeDatabricksInsertCompatibility#testCompression(java.lang.String)
  (probably not needed)
• io.trino.tests.product.deltalake.TestDeltaLakeDatabricksInsertCompatibility#testWritesToTableWithCheckConstraintFails
• io.trino.tests.product.deltalake.TestDeltaLakeDatabricksInsertCompatibility#testMetadataOperationsRetainCheckConstraints
• io.trino.tests.product.deltalake.TestDeltaLakeDatabricksInsertCompatibility#testWritesToTableWithGeneratedColumnFails
• io.trino.tests.product.deltalake.TestDeltaLakeDatabricksInsertCompatibility#testWritesToTableWithCDFFails
• io.trino.tests.product.deltalake.TestHiveAndDeltaLakeRedirect#testInsertIntoDeltaTableFromHiveNonDefaultSchemaRedirect
• io.trino.tests.product.deltalake.TestHiveAndDeltaLakeRedirect#testViewReferencingHiveAndDeltaTable

[ebyhr]

Not sure why IntelliJ returned wrong results. Just added the annotation to all of DELTA_LAKE_DATABRICKS regardless of the detailed tests.

[findinpath]

You're still missing

• io.trino.tests.product.deltalake.TestDeltaLakeDatabricksCheckpointsCompatibility#testTrinoCheckpointNullStatisticsForRowType
• io.trino.tests.product.deltalake.TestDeltaLakeDatabricksCheckpointsCompatibility#testDatabricksCheckpointNullStatisticsForRowType

[ebyhr]

Pushed an empty commit because there was no retrying with "Communication link failure".

[ebyhr]

https://github.com/trinodb/trino/actions/runs/3407215065/jobs/5666758475 has retrying with "Communication link failure", but TestDeltaLakeDatabricksCheckpointsCompatibility.testDatabricksWriteStatsAsJsonEnabled has NPE. Going to fix the issue.