mongodb: switch back from 5 -> 4.4

because 5.x is not supported by meteor yet leading to endless echo test connection modal due to the state observer does not get triggered.

docker-compose.tmpl.yml

@@ -161,7 +161,7 @@ services:
         ipv4_address: 10.7.7.5
 
   mongodb:
-    image: mongo:5.0
+    image: mongo:4.4
     restart: unless-stopped
     volumes:
       - ./mod/mongo/mongod.conf:/etc/mongod.conf