[QUARANTINE] Plan Read-only board configuration shows board configuration to user without edit permission

What does this MR do?

Quarantines the test Plan Read-only board configuration shows board configuration to user without edit permission (https://gitlab.com/gitlab-org/gitlab/-/blob/master/qa/qa/specs/features/ee/browser_ui/2_plan/issue_boards/read_only_board_configuration_spec.rb#L27)

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

1. e2e:package-and-test-results
2. e2e:package-and-test-results
3. e2e:package-and-test-results

#375829 (closed)

(This MR was automatically generated by Confiner at 2022-10-01 01:59:08 UTC)