disable mysql for mailu

test/docker_mail/templates/docker-compose.yml

@@ -177,16 +177,16 @@ services:
     depends_on:
       - front
 
-  db:
-    image: mariadb:10.5
-    command: --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci
-    volumes:
-      - "{{ basedir }}/db:/var/lib/mysql"
-    environment:
-      - MYSQL_DATABASE=mailudb
-      - MYSQL_USER=mailu
-      - MYSQL_PASSWORD={{ mailu_db_pass }}
-      - MYSQL_ROOT_PASSWORD={{ mysql_root_pass }}
+  #db:
+  #  image: mariadb:10.5
+  #  command: --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci
+  #  volumes:
+  #    - "{{ basedir }}/db:/var/lib/mysql"
+  #  environment:
+  #    - MYSQL_DATABASE=mailudb
+  #    - MYSQL_USER=mailu
+  #    - MYSQL_PASSWORD={{ mailu_db_pass }}
+  #    - MYSQL_ROOT_PASSWORD={{ mysql_root_pass }}
 
   # Additional Services: mailman
   mailman-core: