Disable Failing Webhooks (#11966)

* todo comment

* add failures field to webhooks and sanitize

* implement logic

* use update instead of save

* specify timeout and maximum number of retries

* add tests

test/api/v3/integration/webhook/PUT-user_update_webhook.test.js

@@ -63,6 +63,21 @@ describe('PUT /user/webhook/:id', () => {
     expect(webhook.options).to.eql(options);
   });
 
+  it('ignores protected fields', async () => {
+    const failures = 3;
+    const lastFailureAt = new Date();
+
+    await user.put(`/user/webhook/${webhookToUpdate.id}`, {
+      failures, lastFailureAt,
+    });
+
+    await user.sync();
+    const webhook = user.webhooks.find(hook => webhookToUpdate.id === hook.id);
+
+    expect(webhook.failures).to.eql(0);
+    expect(webhook.lastFailureAt).to.eql(undefined);
+  });
+
   it('updates a webhook with empty label', async () => {
     const url = 'http://a-new-url.com';
     const type = 'groupChatReceived';