Move dpkg-deb -c output to artifact to keep CI output readable

shared-ci.yml

@@ -68,11 +68,12 @@ image: registry.git.cccv.de/infra/packages/docker-images/utility
   - mv ../*.deb ./
   - cp debian/changelog ./changelog.txt
   - dpkg-deb -I *.deb
-  - dpkg-deb -c *.deb
+  - dpkg-deb -c *.deb > contents.txt
   artifacts:
     paths:
     - ./*.deb
     - changelog.txt
+    - contents.txt
 
 .publish:
   stage: publish