Merge branch 'sh-drop-bundler-audit' into 'master'

Remove bundler-audit from Gemfile

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/179970



Merged-by: Nao Hashizume <nhashizume@gitlab.com>
Approved-by: Nao Hashizume <nhashizume@gitlab.com>
Co-authored-by: Stan Hu <stanhu@gmail.com>