Fix cross-join between dast_scanner_profiles and dast_scanner_profiles_builds

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/spec/lib/gitlab/database/desired_sharding_key_spec.rb