ci: add jenkinsfile

Jenkinsfile

@@ -0,0 +1,20 @@
+pipeline {
+  agent none
+  stages {
+    stage('Tests') {
+      agent {
+        docker {
+          image 'python:3.9'
+          args '--user 0:0'
+        }
+
+      }
+      steps {
+        sh 'pip install pip --upgrade --progress-bar off'
+        sh 'pip install .[all] --progress-bar off'
+        sh './tests/test_examples.sh examples'
+      }
+    }
+
+  }
+}