Merge branch 'renovate-gems/testing-gems' into 'master'

Update dependency webmock to '~> 3.19.0'

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/130270



Merged-by: Jennifer Li <jli@gitlab.com>
Approved-by: Jennifer Li <jli@gitlab.com>
Co-authored-by: GitLab Renovate Bot <gitlab-bot@gitlab.com>