Adjust searchable snapshot license (#60578)

No longer needs Platinum license for testing on staging.

Author: ywelsch

buildSrc/src/main/groovy/org/elasticsearch/gradle/doc/RestTestsFromSnippetsTask.groovy

@@ -259,6 +259,7 @@ class RestTestsFromSnippetsTask extends SnippetsTask {
                     case 'basic':
                     case 'gold':
                     case 'platinum':
+                    case 'enterprise':
                         current.println("        - xpack")
                         break;
                     default:

docs/reference/searchable-snapshots/apis/clear-cache.asciidoc

@@ -1,5 +1,5 @@
 [role="xpack"]
-[testenv="platinum"]
+[testenv="enterprise"]
 [[searchable-snapshots-api-clear-cache]]
 === Clear cache API
 ++++

docs/reference/searchable-snapshots/apis/get-stats.asciidoc

@@ -1,5 +1,5 @@
 [role="xpack"]
-[testenv="platinum"]
+[testenv="enterprise"]
 [[searchable-snapshots-api-stats]]
 === Searchable snapshot statistics API
 ++++

docs/reference/searchable-snapshots/apis/mount-snapshot.asciidoc

@@ -1,5 +1,5 @@
 [role="xpack"]
-[testenv="platinum"]
+[testenv="enterprise"]
 [[searchable-snapshots-api-mount-snapshot]]
 === Mount snapshot API
 ++++

docs/reference/searchable-snapshots/apis/repository-stats.asciidoc

@@ -1,5 +1,5 @@
 [role="xpack"]
-[testenv="platinum"]
+[testenv="enterprise"]
 [[searchable-snapshots-repository-stats]]
 === Searchable snapshot repository statistics API
 ++++

docs/reference/searchable-snapshots/apis/searchable-snapshots-apis.asciidoc

@@ -1,5 +1,5 @@
 [role="xpack"]
-[testenv="platinum"]
+[testenv="enterprise"]
 [[searchable-snapshots-apis]]
 == Searchable snapshots APIs
 

x-pack/plugin/core/src/main/java/org/elasticsearch/license/XPackLicenseState.java

@@ -100,7 +100,7 @@ public enum Feature {
 
         ANALYTICS(OperationMode.MISSING, true),
 
-        SEARCHABLE_SNAPSHOTS(OperationMode.PLATINUM, true);
+        SEARCHABLE_SNAPSHOTS(OperationMode.ENTERPRISE, true);
 
         final OperationMode minimumOperationMode;
         final boolean needsActive;