Migrate Gitea proxy to canonical Caddy

dankclaw/gitea/quadlet/gitea.network

@@ -4,7 +4,7 @@
 # Unit name: gitea-network.service (podman network name: systemd-gitea)
 #
 # DNS is enabled by default for quadlet networks. This matters: the
-# automatic "podman" default network has dns_enabled=false, so container
-# names (gitea-postgres, gitea-server, gitea-caddy) would not resolve.
+# automatic "podman" default network has dns_enabled=false, so the
+# gitea-postgres and gitea-server container names would not resolve.
 
 [Network]