fix: for discord webhook in the notify.js in server directory, changi…

…ng the return value from response body to statusText to avoid empty string. (#2215)

Co-authored-by: Huang Chuan <river1440>

packages/server/src/service/notify.js

@@ -389,7 +389,9 @@ module.exports = class extends think.Service {
       method: 'POST',
       header: form.getHeaders(),
       body: form,
-    }).then((resp) => resp.json());
+    }).then((resp) => resp.statusText);
+    // Expected return value: No Content
+    // Since Discord doesn't return any response body on success, we just return the status text.
   }
 
   async lark({ title, content }, self, parent) {