Merge branch 'pgascouvaillancourt-master-patch-48576' into 'master'

Add info about pipelines_security_report_summary FF

See merge request gitlab-org/gitlab!43166

config/feature_flags/development/pipelines_security_report_summary.yml

 ---
 name: pipelines_security_report_summary
-introduced_by_url: 
-rollout_issue_url: 
-group: 
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/31136
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/235943
+group: group::dynamic analysis
 type: development
 default_enabled: false