Merge branch '509542-move-organization-role-change-dropdown-o-drawer' into 'master'

Move organization role change dropdown to drawer

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/175804



Merged-by: Justin Ho Tuan Duong <hduong@gitlab.com>
Approved-by: Serhii Yarynovskyi <syarynovskyi@gitlab.com>
Approved-by: Justin Ho Tuan Duong <hduong@gitlab.com>
Reviewed-by: Justin Ho Tuan Duong <hduong@gitlab.com>
Co-authored-by: Shane Maglangit <smaglangit@gitlab.com>