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/test/integration/shared/db/workflowHistory.ts

@@ -1,7 +1,7 @@
 import Container from 'typedi';
 import { v4 as uuid } from 'uuid';
 import type { WorkflowHistory } from '@db/entities/WorkflowHistory';
-import { WorkflowHistoryRepository } from '@db/repositories';
+import { WorkflowHistoryRepository } from '@db/repositories/workflowHistory.repository';
 
 export async function createWorkflowHistoryItem(
 	workflowId: string,