Create new section for content about feature that might confuse users

data/deprecations/15-9-required-pipeline-configuration.yml

doc/administration/compliance.md

doc/ci/yaml/index.md

doc/update/deprecations.md

doc/user/admin_area/settings/continuous_integration.md

doc/user/application_security/get-started-security.md

doc/user/application_security/index.md

.../application_security/policies/scan-execution-policies.md

doc/user/group/compliance_frameworks.md