ci: add packaging step (#74029)

Jenkinsfile

@@ -12,5 +12,27 @@ pipeline {
                 sh 'tox -rv'
             }
         }
+        stage('Packaging') {
+            steps {
+                script {
+                    if (env.JOB_NAME == 'gitea-redmine' && env.GIT_BRANCH == 'origin/main') {
+                        sh 'sudo -H -u eobuilder /usr/local/bin/eobuilder -d bullseye gitea-redmine'
+                    } else if (env.GIT_BRANCH.startsWith('hotfix/')) {
+                        sh "sudo -H -u eobuilder /usr/local/bin/eobuilder -d bullseye --branch ${env.GIT_BRANCH} --hotfix gitea-redmine"
+                    }
+                }
+            }
+        }
+    }
+    post {
+        always {
+            script {
+                utils = new Utils()
+                utils.mail_notify(currentBuild, env, 'ci+jenkins-gitea-redmine@entrouvert.org')
+            }
+        }
+        success {
+            cleanWs()
+        }
     }
 }