Merge branch '457724-add-support-for-multi-match-ff' into 'master'

Add es query builder support for multi-match

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/153040



Merged-by: Madelein van Niekerk <mvanniekerk@gitlab.com>
Approved-by: Madelein van Niekerk <mvanniekerk@gitlab.com>
Reviewed-by: Terri Chu <tchu@gitlab.com>
Co-authored-by: Terri Chu <tchu@gitlab.com>