Merge branch 'use-safe-load-file' into 'master'

Use YAML.safe_load_file which is available for Ruby 3.0

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/142715



Merged-by: Peter Leitzen <pleitzen@gitlab.com>
Approved-by: Peter Leitzen <pleitzen@gitlab.com>
Co-authored-by: Lin Jen-Shin <jen-shin@gitlab.com>