Add a test Jenkinsfile to trigger the Jenkins pipeline.

Jenkinsfile

+pipeline {
+    environment {
+        BRANCH_TO_DEPLOY = "master"
+    }
+    agent none
+    stages {
+        stage('Deploy') {
+            agent {
+                label 'docker'
+            }
+            when {
+                branch "${BRANCH_TO_DEPLOY}"
+            }
+            steps {
+                withCredentials() {
+                    // Just get helm3 for testing
+                    sh 'wget https://get.helm.sh/helm-v3.0.3-linux-amd64.tar.gz https://get.helm.sh/helm-v3.0.3-linux-amd64.tar.gz.sha256'
+                }
+            }
+        }
+    }
+}
\ No newline at end of file