Refine compliance pipelines introductory text

doc/administration/compliance.md

doc/ci/yaml/index.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/compliance/compliance_report/index.md

doc/user/group/manage.md

doc/user/permissions.md

doc/user/project/settings/index.md

...settings/compliance_frameworks/components/shared_form.vue

...nagement/compliance_framework/_project_settings.html.haml

ee/app/views/groups/_compliance_frameworks.html.haml

locale/gitlab.pot