fix trim command for deployment url

.gitlab/ci/ci.yml

@@ -75,7 +75,7 @@ trigger_deploy_mr:
         - apk add curl
     script:
         - 'curl -X POST -F token=$GITLAB_DESY_TOKEN -F ref=main --form "variables[CI_COMMIT_REF_NAME]=$CI_COMMIT_REF_NAME" --form "variables[CI_MERGE_REQUEST_IID]=$CI_MERGE_REQUEST_IID" --form "variables[CP_COMPONENT]=cerebrum" $GITLAB_DESY_URL'
-        - echo "Application will be automatically deployed. After a couple of minutes you can find it at http://cerebrum-`echo $CI_COMMIT_REF_NAME | tr _ -`.beermath-test.131.169.234.105.nip.io"
+        - echo "Application will be automatically deployed. After a couple of minutes you can find it at http://cerebrum-`echo $CI_COMMIT_REF_NAME | tr [:upper:] [:lower:] | tr [:punct:] -`.beermath-test.131.169.234.105.nip.io"
 
 trigger_deploy_master:
     only: