Fix redis connection (#7956)

## Context
bull-mq connection was not working as intended, the connection parameter
was ignored and was falling back to localhost.
This PR should fix the issue by instantiating a IORedis client following
bullmq documentation https://docs.bullmq.io/guide/connections
I also changed cache-storage module to use IORedis client as well to be
more consistent even though it was not necessary there. We could move
that instantiation to a factory class in the future.

## Test
start server + worker with correct port and wrong port with
cache-storage-type memory/redis and queue-type sync/bull-mq

packages/twenty-server/src/engine/core-modules/redis-client/redis-client.module.ts

@@ -0,0 +1,12 @@
+import { Global, Module } from '@nestjs/common';
+
+import { EnvironmentModule } from 'src/engine/core-modules/environment/environment.module';
+import { RedisClientService } from 'src/engine/core-modules/redis-client/redis-client.service';
+
+@Global()
+@Module({
+  imports: [EnvironmentModule],
+  providers: [RedisClientService],
+  exports: [RedisClientService],
+})
+export class RedisClientModule {}

packages/twenty-server/src/engine/core-modules/redis-client/redis-client.service.ts

@@ -0,0 +1,33 @@
+import { Injectable, OnModuleDestroy } from '@nestjs/common';
+
+import IORedis from 'ioredis';
+
+import { EnvironmentService } from 'src/engine/core-modules/environment/environment.service';
+
+@Injectable()
+export class RedisClientService implements OnModuleDestroy {
+  private redisClient: IORedis | null = null;
+
+  constructor(private readonly environmentService: EnvironmentService) {}
+
+  getClient() {
+    if (!this.redisClient) {
+      const redisUrl = this.environmentService.get('REDIS_URL');
+
+      if (!redisUrl) {
+        throw new Error('REDIS_URL must be defined');
+      }
+
+      this.redisClient = new IORedis(redisUrl);
+    }
+
+    return this.redisClient;
+  }
+
+  async onModuleDestroy() {
+    if (this.redisClient) {
+      await this.redisClient.quit();
+      this.redisClient = null;
+    }
+  }
+}