Monitoring: add separate docker network

files/gitea/docker-compose.yml.j2

@@ -13,7 +13,7 @@ services:
       - /etc/timezone:/etc/timezone:ro
       - /etc/localtime:/etc/localtime:ro
     networks:
-      - "{{ web_proxy_network }}"
+      - "web_proxy_network"
     environment:
       - "USER_UID=${USER_UID}"
       - "USER_GID=${USER_GID}"
@@ -29,5 +29,5 @@ services:
       - "GITEA__mailer__FROM=gitea@vakhrushev.me"
 
 networks:
-  {{ web_proxy_network }}:
+  web_proxy_network:
     external: true