Merge branch 'determine-sharding-key-feature-category-vulnerability_management' into 'master'

Add sharding keys for vulnerability_management

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/142121



Merged-by: Tiger Watson <twatson@gitlab.com>
Approved-by: Subashis Chakraborty <schakraborty@gitlab.com>
Approved-by: Gregory Havenga <11164960-ghavenga@users.noreply.gitlab.com>
Co-authored-by: Dylan Griffith <dyl.griffith@gmail.com>