Merge branch 'shl-dont-restrict-no-of-promotions' into 'master'

Don't restrict number of promotion candidates in json file

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/148446



Merged-by: Ramya Authappan <rauthappan@gitlab.com>
Approved-by: Ramya Authappan <rauthappan@gitlab.com>
Co-authored-by: Sanad Liaquat (Personal) <sliaquat@gitlab.com>