OP#618 add ssh-agent to last stage

Jenkinsfile

@@ -100,6 +100,7 @@ pipeline {
 
       stage('Mirror to Gitea') {
         steps {
+          sshagent(['edd05eb6-26b5-4c7b-a5cc-ea2ab899f4fa']) {
             withCredentials([usernamePassword(
               credentialsId: 'Jenkins-gitea',
               usernameVariable: 'GITEA_USER',
@@ -123,4 +124,5 @@ pipeline {
         }
       }
     }
+  }
 }