Add a migration service on the docker compose

docker-compose.dev.yml

@@ -35,11 +35,21 @@ services:
         condition: service_healthy
       rabbitmq:
         condition: service_healthy
+      migrations:
+        condition: service_completed_successfully
     volumes:
       - ./back:/app
       - /app/out/
       - kyoo:/kyoo
 
+  migrations:
+    build:
+      context: ./back
+      dockerfile: Dockerfile.migrations
+    restart: "no"
+    env_file:
+      - ./.env
+
   front:
     build:
       context: ./front