Fix ImagePullPolicy missing variable usage (#6091)

...ernetes-apps/ansible/templates/netchecker-agent-ds.yml.j2

...apps/ansible/templates/netchecker-agent-hostnet-ds.yml.j2

...pps/ansible/templates/netchecker-server-deployment.yml.j2

...er/aws_ebs/templates/aws-ebs-csi-controllerservice.yml.j2

...azuredisk/templates/azure-csi-azuredisk-controller.yml.j2

...river/azuredisk/templates/azure-csi-azuredisk-node.yml.j2

...river/cinder/templates/cinder-csi-controllerplugin.yml.j2

.../csi_driver/cinder/templates/cinder-csi-nodeplugin.yml.j2

...driver/vsphere/templates/vsphere-csi-controller-ss.yml.j2

...apps/csi_driver/vsphere/templates/vsphere-csi-node.yml.j2

roles/network_plugin/cilium/templates/cilium-deploy.yml.j2

roles/network_plugin/cilium/templates/cilium-ds.yml.j2

roles/network_plugin/kube-ovn/templates/cni-kube-ovn.yml.j2

...s/network_plugin/kube-router/templates/kube-router.yml.j2