Retain PVC when jenkins job is completed

I am looking to retain PVC when the jenkins job is completed.

podTemplate(workspaceVolume: dynamicPVC(requestsSize: "1Gi",storageClassName: 'test'), containers: [
        containerTemplate(name: 'jnlp', image: 'jenkins/jnlp-slave:3.35-5-alpine', args: '${computer.jnlpmac} ${computer.name}')
], yaml:'''
spec:
  securityContext:
    fsGroup: 1000
''') {

    node(POD_LABEL) {
        container(name: 'jnlp') {
            sh 'echo .....'

        }
    }
}

and My test storage class definition

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
    name: test
provisioner: kubernetes.io/gce-pd
reclaimPolicy: Retain
parameters:
    type: pd-ssd

Everything works fine. But PVC is deleted when job is completed. Is there any way to retain the pVC.