[Mobilizon] change network name

pica-mobilizon/docker-compose.yml

@@ -6,6 +6,7 @@ networks:
     proxy:
       external: true
     mobilizon:
+      name: "mobilizon"
 
 volumes:
     mobilizon-data:
@@ -70,4 +71,4 @@ services:
         networks:
             - mobilizon
         restart: unless-stopped
-        
\ No newline at end of file
+