Upgrade the Compose file format version to 3.5

docker-compose.sync.yml

@@ -1,4 +1,4 @@
-version: '3'
+version: '3.5'
 
 services:
 

docker-compose.yml

@@ -1,4 +1,4 @@
-version: '3'
+version: '3.5'
 
 networks:
   frontend:
@@ -848,11 +848,11 @@ services:
 ### MeiliSearch ##########################################
     meilisearch:
       image: getmeili/meilisearch:latest
-      volumes: 
+      volumes:
         - ${DATA_PATH_HOST}/meilisearch:/var/lib/meilisearch
-      ports: 
+      ports:
         - "${MEILISEARCH_HOST_PORT}:7700"
-      networks: 
+      networks:
         - frontend
         - backend
 
@@ -1371,7 +1371,7 @@ services:
     docker-in-docker:
       image: docker:19.03-dind
       environment:
-        DOCKER_TLS_SAN: DNS:docker-in-docker      
+        DOCKER_TLS_SAN: DNS:docker-in-docker
       privileged: true
       volumes:
         - ${APP_CODE_PATH_HOST}:${APP_CODE_PATH_CONTAINER}