Fixed Caddyfile for CI

docker/Caddyfile

@@ -1,6 +1,17 @@
 {
 	email {$ACME_EMAIL}
 	admin off
+	servers {
+      listener_wrappers {
+        proxy_protocol {
+          timeout 2s
+          allow {$TRUST_PROXY}
+        }
+        tls
+      }
+      trusted_proxies static {$TRUST_PROXY}/32
+      client_ip_headers X-Forwarded-For X-Real-IP
+    }
 }
 
 # Internal only, for the container healthcheck. Never published in compose.