ci: test outputting a deprecation warning

.gitlab-ci.yml

 include:
   - component: dev.quiqqer.com/quiqqer/stabilization/ci-cd-components/quiqqer-package-bundle/quiqqer-package-bundle@dev
+
+deprecation_warning:
+  image: bash:5
+  stage: test
+  script:
+    - > 
+      echo -e "\e[33m
+      Using the 'quiqqer/stabilization/semantic-release' CI template is deprecated.\n
+      Use the 'QUIQQER Package Bundle' CI component instead.\n
+      See: https://dev.quiqqer.com/explore/catalog/quiqqer/stabilization/ci-cd-components/quiqqer-package-bundle
+      \e[39m"
+    - exit 1
+  rules:
+    # Execute when merging into a protected branch
+    - if: $CI_PIPELINE_SOURCE == 'merge_request_event' && $CI_MERGE_REQUEST_TARGET_BRANCH_PROTECTED
+    # Prevent duplicate pipelines for merge request & push
+    - if: $CI_COMMIT_BRANCH && $CI_OPEN_MERGE_REQUESTS
+      when: never
+    # Execute when pushing
+    - if: $CI_COMMIT_BRANCH
+    
+