Merge branch '408676-adjust-label-close' into 'master'

Remove label close button when lock on merge

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/130681



Merged-by: Miguel Rincon <mrincon@gitlab.com>
Reviewed-by: Simon Knox <simon@gitlab.com>
Reviewed-by: Miguel Rincon <mrincon@gitlab.com>
Reviewed-by: Donald Cook <dcook@gitlab.com>
Co-authored-by: Donald Cook <dcook@gitlab.com>
Co-authored-by: Brett Walker <bwalker@gitlab.com>