OP#618 add ssh-agent to last stage

Jenkinsfile

@@ -117,7 +117,7 @@ pipeline {
                     sh '''
                       git checkout master
                       git pull origin master
-                      git branch -D development
+                      git branch -D development || echo "No development branch to remove"
                       git branch -D jenkins-build-$BUILD_NUMBER
                       git rm -f Jenkinsfile
                       git rm -r --cached .vscode || echo "No .vscode to remove from git"