Add pg-boss worker poc (#2991)

* Add pg-boss worker poc

* add Example job

* add retry limit

* rename MessageQueue

packages/twenty-server/src/workspace/messaging/messaging.module.ts

@@ -0,0 +1,10 @@
+import { Module } from '@nestjs/common';
+
+import { MessagingProducer } from 'src/workspace/messaging/producers/messaging-producer';
+
+@Module({
+  imports: [],
+  providers: [MessagingProducer],
+  exports: [MessagingProducer],
+})
+export class MessagingModule {}