[QUARANTINE] Package Dependency Proxy Group SSO pulls an image using the dependency proxy on a group enforced SSO

What does this MR do?

Quarantines the test Package Dependency Proxy Group SSO pulls an image using the dependency proxy on a group enforced SSO (https://gitlab.com/gitlab-org/gitlab/-/blob/master/qa/qa/specs/features/ee/browser_ui/5_package/dependency_proxy_sso_spec.rb#L76)

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

#376096 (closed)

(This MR was automatically generated by Confiner at 2022-10-02 02:00:55 UTC)