Merge branch '432371-fix-visibility-of-variable-values-in-dropdown-on-the-new-pipelines-page' into 'master' 

Fix limited visibility of variable values in dropdown

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/143733



Merged-by: Anna Vovchenko <avovchenko@gitlab.com>
Approved-by: Will Meek <wmeek@gitlab.com>
Approved-by: Anna Vovchenko <avovchenko@gitlab.com>
Approved-by: Jay Montal <jmontal@gitlab.com>
Approved-by: Sunjung Park <spark@gitlab.com>
Approved-by: Briley Sandlin <bsandlin@gitlab.com>
Reviewed-by: Jay Montal <jmontal@gitlab.com>
Co-authored-by: Anton Kalmykov <anton.kalmykov@heathmont.net>