[QUARANTINE] Manage prevent forking outside group when enabled does not allow forking outside of group

What does this MR do?

Quarantines the test Manage prevent forking outside group when enabled does not allow forking outside of group (https://gitlab.com/gitlab-org/gitlab/-/blob/master/qa/qa/specs/features/ee/browser_ui/1_manage/group/prevent_forking_outside_group_spec.rb#L40)

This test has been found by Confiner to have failed 6 times, which exceeds the threshold of 3 times.

1. e2e:package-and-test-results
2. e2e:package-and-test-results
3. e2e:package-and-test-results
4. e2e:package-and-test-results
5. e2e:package-and-test-results
6. e2e:package-and-test-results

#376108 (closed)

(This MR was automatically generated by Confiner at 2022-10-02 02:03:41 UTC)