Resolve cross join in ScheduleMarkDroppedAsResolvedService

Problem to solve

All cross-joins arising from decomposing gitlab_sec from gitlab_main should be resolved. See parent epic for context.

1. Remove allowed cross-join for relevant relation using associated documentation for guidance on removing cross-joins or cross-transactions occurrences

Files

• ee/app/services/security/ingestion/schedule_mark_dropped_as_resolved_service.rb