[QUARANTINE] Verify Pipeline with protected variable exposes variable on protected branch

What does this MR do?

Quarantines the test Verify Pipeline with protected variable exposes variable on protected branch (https://gitlab.com/gitlab-org/gitlab/-/blob/master/qa/qa/specs/features/browser_ui/4_verify/ci_variable/pipeline_with_protected_variable_spec.rb#L64)

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

#355719 (closed)

(This MR was automatically generated by Confiner at 2022-04-13 01:32:24 UTC)