Merge branch 'sk/474079-remove-actions-approval_settings' into 'master'

Remove actions and approval_settings from security_policies

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/163753



Merged-by: Simon Tomlinson <stomlinson@gitlab.com>
Approved-by: Dominic Bauer <dbauer@gitlab.com>
Approved-by: Simon Tomlinson <stomlinson@gitlab.com>
Co-authored-by: Sashi Kumar <skumar@gitlab.com>