Add in flag to restrict calling the validation endpoint

Author: nsdeschenes

src/sentry/features/temporary.py

@@ -314,6 +314,8 @@ def register_temporary_features(manager: FeatureManager) -> None:
     manager.add("organizations:slack-staging-app", OrganizationFeature, FeatureHandlerStrategy.FLAGPOLE, api_expose=True)
     # Enable Seer Explorer in Slack via @mentions
     manager.add("organizations:seer-slack-explorer", OrganizationFeature, FeatureHandlerStrategy.FLAGPOLE, api_expose=True)
+    # Enable search query attribute validation
+    manager.add("organizations:search-query-attribute-validation", OrganizationFeature, FeatureHandlerStrategy.FLAGPOLE, api_expose=True)
     # Enable search query builder to support explicit boolean filters
     manager.add("organizations:search-query-builder-explicit-boolean-filters", OrganizationFeature, FeatureHandlerStrategy.FLAGPOLE, api_expose=True)
     # Enable search query builder input flow changes