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/controllers/workflowStatistics.controller.ts

@@ -3,7 +3,8 @@ import { Response, NextFunction } from 'express';
 import { Get, Middleware, RestController } from '@/decorators';
 import type { WorkflowStatistics } from '@db/entities/WorkflowStatistics';
 import { StatisticsNames } from '@db/entities/WorkflowStatistics';
-import { SharedWorkflowRepository, WorkflowStatisticsRepository } from '@db/repositories';
+import { SharedWorkflowRepository } from '@db/repositories/sharedWorkflow.repository';
+import { WorkflowStatisticsRepository } from '@db/repositories/workflowStatistics.repository';
 import { ExecutionRequest } from '@/requests';
 import { whereClause } from '@/UserManagement/UserManagementHelper';
 import { NotFoundError } from '@/ResponseHelper';