Update cmd/gcp-controller-manager/node_csr_approver.go
Update cmd/gcp-controller-manager/node_csr_approver.go

Co-authored-by: Vinayak Goyal <4c6f9c5451532a9d8f27411611c2eacf476a1e2a@gmail.com>
kubernetes/cloud-provider-gcp,kubernetes/cloud-provider-gcp