Merge branch 'rd/note-extra-protected-branches-protection' into 'master'

Note scan result policy feature

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/135912



Merged-by: Evan Read <eread@gitlab.com>
Approved-by: Evan Read <eread@gitlab.com>
Approved-by: Grant Hickman <ghickman@gitlab.com>
Co-authored-by: Russell Dickenson <rdickenson@gitlab.com>

doc/user/project/protected_branches.md

@@ -43,6 +43,9 @@ When a branch is protected, the default behavior enforces these restrictions on
    for that branch at the project level are ignored. All other protections continue
    to use project level settings.
 
+You can implement a [scan result policy](../application_security/policies/scan-result-policies.md#approval_settings)
+to prevent protected branches being unprotected or deleted.
+
 ### When a branch matches multiple rules
 
 When a branch matches multiple rules, the **most permissive rule** determines the