Merge pull request 'enable e2e notification' (#670) from enabled-e2e-notification into master

Reviewed-on: https://git.ozg-sh.de/ozgcloud-app/alfa/pulls/670


Reviewed-by: OZGCloud <ozgcloud@mgm-tp.com>

alfa-client/apps/alfa-e2e/Jenkinsfile

@@ -325,7 +325,7 @@ pipeline {
         failure {
             script {
                 if (isMasterBranch() || isReleaseBranch()) {
-                    //sendFailureMessage()
+                    sendFailureMessage()
                 }
             }
         }