Merge branch 'mclausen35/security_insights_523452' into 'master'

Add system note when a vulnerability is redetected

See merge request gitlab-com/www-gitlab-com!139245

data/release_posts/unreleased/security-risk-management-add-system-note-when-a-vulnerability-is-r.yml

+---
+features:
+  secondary:
+  - name: "Improved traceability of redetected vulnerabilities"
+    available_in: []
+    gitlab_com: true
+    add_ons: []
+    documentation_link: 'https://docs.gitlab.com/user/application_security/vulnerabilities/#vulnerability-status-values'
+    reporter: mclausen35
+    stage: security_risk_management
+    categories: []
+    issue_url: 'https://gitlab.com/gitlab-org/gitlab/-/issues/523452'
+    description: |
+      Previously, when a resolved vulnerability was redetected and changed status, the vulnerability details did not provide information to indicate when and why the status change occurred. 
+
+      GitLab now adds a system note to the vulnerability history when resolved vulnerabilities change status because they appeared in a new scan. This additional information helps users understand why vulnerabilities have changed status.