Merge branch '455501-use-golang-1-21-for-go_version-in-ci' into 'master'

Resolve "Use golang-1.21 for GO_VERSION in CI"

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/149225



Merged-by: Nao Hashizume <nhashizume@gitlab.com>
Approved-by: Patrick Bajao <ebajao@gitlab.com>
Approved-by: Nao Hashizume <nhashizume@gitlab.com>
Co-authored-by: Ash McKenzie <amckenzie@gitlab.com>