Merge branch 'el-add-phone-verification-endpoints-delay' into 'master'

Add increasing wait time between phone verification code sends

Closes gitlab-org/modelops/anti-abuse/team-tasks#539

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/137850



Merged-by: Smriti Garg <sgarg@gitlab.com>
Approved-by: Smriti Garg <sgarg@gitlab.com>
Approved-by: Max Orefice <morefice@gitlab.com>
Approved-by: Ross Byrne <robyrne@gitlab.com>
Approved-by: Doug Stull <dstull@gitlab.com>
Approved-by: Omar Qunsul <oqunsul@gitlab.com>
Reviewed-by: Doug Stull <dstull@gitlab.com>
Reviewed-by: Aakriti Gupta <agupta@gitlab.com>
Reviewed-by: Max Orefice <morefice@gitlab.com>
Reviewed-by: Omar Qunsul <oqunsul@gitlab.com>
Co-authored-by: Eugie Limpin <elimpin@gitlab.com>