ci: Remove unnecessary async/await, enable await-thenable linting rule (no-changelog) (#8076)

## Summary
We accidentally made some functions `async` in
https://github.com/n8n-io/n8n/pull/7846
This PR reverts that change. 

## Review / Merge checklist
- [x] PR title and summary are descriptive.

packages/cli/src/controllers/workflowStatistics.controller.ts

@@ -37,7 +37,7 @@ export class WorkflowStatisticsController {
 		const workflowId = req.params.id;
 		const allowed = await this.sharedWorkflowRepository.exist({
 			relations: ['workflow'],
-			where: await whereClause({
+			where: whereClause({
 				user,
 				globalScope: 'workflow:read',
 				entityType: 'workflow',