e2e disable rebase for gitops repo

alfa-client/apps/alfa-e2e/Jenkinsfile

@@ -419,6 +419,7 @@ Void pushGitopsRepo() {
     withCredentials([usernamePassword(credentialsId: 'jenkins-gitea-access-token', passwordVariable: 'TOKEN', usernameVariable: 'USER')]) {
         dir('gitops') {
             if (hasUnpushedCommits()) {
+                sh 'git config pull.rebase false'
                 sh 'git pull'
                 sh 'git push https://${USER}:${TOKEN}@git.ozg-sh.de/ozgcloud-devops/gitops.git'
             }