Remove typeorm service (#14116)

## Context
To simplify the way we inject our default datasource, I've recently
removed the token injection that was confusion since we only had once
configured on the module level. Now I'm removing TypeORM service which
allows us to instantiate a new Datasource with the same parameters as
the default one, it was redundant and confusing.

packages/twenty-server/src/modules/workflow/workflow-trigger/automated-trigger/crons/jobs/cron-trigger.cron.job.ts

@@ -1,8 +1,8 @@
-import { InjectRepository } from '@nestjs/typeorm';
+import { InjectDataSource, InjectRepository } from '@nestjs/typeorm';
 
 import { isDefined } from 'twenty-shared/utils';
 import { WorkspaceActivationStatus } from 'twenty-shared/workspace';
-import { Repository } from 'typeorm';
+import { DataSource, Repository } from 'typeorm';
 
 import { SentryCronMonitor } from 'src/engine/core-modules/cron/sentry-cron-monitor.decorator';
 import { ExceptionHandlerService } from 'src/engine/core-modules/exception-handler/exception-handler.service';
@@ -13,7 +13,6 @@ import { MessageQueue } from 'src/engine/core-modules/message-queue/message-queu
 import { MessageQueueService } from 'src/engine/core-modules/message-queue/services/message-queue.service';
 import { Workspace } from 'src/engine/core-modules/workspace/workspace.entity';
 import { getWorkspaceSchemaName } from 'src/engine/workspace-datasource/utils/get-workspace-schema-name.util';
-import { WorkspaceDataSourceService } from 'src/engine/workspace-datasource/workspace-datasource.service';
 import { AutomatedTriggerType } from 'src/modules/workflow/common/standard-objects/workflow-automated-trigger.workspace-entity';
 import { type CronTriggerSettings } from 'src/modules/workflow/workflow-trigger/automated-trigger/constants/automated-trigger-settings';
 import { shouldRunNow } from 'src/modules/workflow/workflow-trigger/automated-trigger/crons/utils/should-run-now.utils';
@@ -27,7 +26,8 @@ export const CRON_TRIGGER_CRON_PATTERN = '* * * * *';
 @Processor(MessageQueue.cronQueue)
 export class CronTriggerCronJob {
   constructor(
-    private readonly workspaceDataSourceService: WorkspaceDataSourceService,
+    @InjectDataSource()
+    private readonly coreDataSource: DataSource,
     @InjectRepository(Workspace)
     private readonly workspaceRepository: Repository<Workspace>,
     @InjectMessageQueue(MessageQueue.workflowQueue)
@@ -46,14 +46,11 @@ export class CronTriggerCronJob {
 
     const now = new Date();
 
-    const mainDataSource =
-      await this.workspaceDataSourceService.connectToMainDataSource();
-
     for (const activeWorkspace of activeWorkspaces) {
       try {
         const schemaName = getWorkspaceSchemaName(activeWorkspace.id);
 
-        const workflowAutomatedCronTriggers = await mainDataSource.query(
+        const workflowAutomatedCronTriggers = await this.coreDataSource.query(
           `SELECT * FROM ${schemaName}."workflowAutomatedTrigger" WHERE type = '${AutomatedTriggerType.CRON}'`,
         );