feat(maintenance-proxy): add maintenance-proxy component

Author: duanhongyi

charts/workflow/requirements.yaml

@@ -41,3 +41,6 @@ dependencies:
   - name: registry-proxy
     version: <registry-proxy-tag>
     repository: https://charts.drycc.cc/stable/registry-proxy
+  - name: maintenance-proxy
+    version: <maintenance-proxy-tag>
+    repository: https://charts.drycc.cc/stable/maintenance-proxy