Update Jenkinsfile

Author: Perdiga

jenkins/Jenkinsfile

@@ -16,6 +16,9 @@ pipeline {
             steps {
                 sh '''#!/bin/bash                    
                     # Upgrade pip, setuptools, and wheel
+                    python3 -m venv venv
+                    . venv/bin/activate
+                    
                     echo "Upgrading pip, setuptools, and wheel..."
                     python3 -m pip install --upgrade pip setuptools wheel packaging gitpython