fix(tests): do not use arrow function when using this

test/api/v3/integration/groups/GET-groups_groupId_invites.test.js

@@ -81,7 +81,7 @@ describe('GET /groups/:groupId/invites', () => {
     });
   });
 
-  it('supports using req.query.lastId to get more invites', async () => {
+  it('supports using req.query.lastId to get more invites', async function () {
     this.timeout(30000); // @TODO: times out after 8 seconds
     let leader = await generateUser({balance: 4});
     let group = await generateGroup(leader, {type: 'guild', privacy: 'public', name: generateUUID()});