Fix: caddy widget broken in 0.9.1 (#3579)

src/widgets/caddy/widget.js

@@ -1,8 +1,14 @@
 import genericProxyHandler from "utils/proxy/handlers/generic";
 
 const widget = {
-  api: "{url}/reverse_proxy/upstreams",
+  api: "{url}/{endpoint}",
   proxyHandler: genericProxyHandler,
+
+  mappings: {
+    upstreams: {
+      endpoint: "reverse_proxy/upstreams",
+    },
+  },
 };
 
 export default widget;