Merge branch 'pedropombeiro/497364/deprecate-ci_used_minutes-2' into 'master'

GraphQL: Deprecate CiRunnerUsageByProject.ciUsedMinutes in favor of ciDuration

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/168199



Merged-by: Allison Browne <abrowne@gitlab.com>
Approved-by: Allison Browne <abrowne@gitlab.com>
Co-authored-by: Pedro Pombeiro <noreply@pedro.pombei.ro>