ci(core): Reduce memory usage in tests (part-2) (no-changelog) (#7671)

This also gets rid of `Db.collection`, which was another source of
circular dependencies.

packages/cli/src/environments/sourceControl/sourceControl.service.ee.ts

@@ -33,7 +33,7 @@ import type { Variables } from '@db/entities/Variables';
 import type { SourceControlWorkflowVersionId } from './types/sourceControlWorkflowVersionId';
 import type { ExportableCredential } from './types/exportableCredential';
 import { InternalHooks } from '@/InternalHooks';
-import { TagRepository } from '@/databases/repositories';
+import { TagRepository } from '@db/repositories/tag.repository';
 import { Logger } from '@/Logger';
 
 @Service()