Merge branch 'pedropombeiro/442395/hide-partition-prefix-from-runner-short_sha' into 'master'

Hide partition prefix from runner short_sha

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/168163



Merged-by: Furkan Ayhan <furkanayhn@gmail.com>
Approved-by: Furkan Ayhan <furkanayhn@gmail.com>
Reviewed-by: Pedro Pombeiro <noreply@pedro.pombei.ro>
Co-authored-by: Pedro Pombeiro <noreply@pedro.pombei.ro>