[QUARANTINE] Release Pages runs a Pages-specific pipeline

What does this MR do?

Quarantines the test Release Pages runs a Pages-specific pipeline (https://gitlab.com/gitlab-org/gitlab/-/blob/master/qa/qa/specs/features/browser_ui/6_release/pages/pages_pipeline_spec.rb#L34)

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

1. ee:instance-parallel
2. ee:update-parallel
3. ee:praefect-parallel

#355341 (closed)

(This MR was automatically generated by Confiner at 2022-04-13 01:36:54 UTC)