chore(deps): update 1panel/openclaw docker tag to v2026.4.2

Author: renovate[bot]

apps/openclaw/2026.3.28/docker-compose.yml

@@ -1,7 +1,7 @@
 services:
   openclaw:
     container_name: ${CONTAINER_NAME}
-    image: 1panel/openclaw:2026.3.28
+    image: 1panel/openclaw:2026.4.2
     restart: unless-stopped
     networks:
       - 1panel-network