[GCP] [capi] Deletion of cluster is happening , it shouldn't be allowed

[GCP] [capi] Deletion of cluster  is happening  , it shouldn't be allowed

4.12.0-0.nightly-2022-12-20-225612

Always

1.Enable featuregate , using featureSet: TechPreviewNoUpgrade
2.Wait for capi pods to get deployed to openshift-cluster-api namespace , it might take 10-15 mins or so 
3.Create cluster using 

apiVersion: cluster.x-k8s.io/v1beta1
kind: Cluster
metadata:
  name: miyadav-xxx-xxxx
  namespace: openshift-cluster-api
spec:
  infrastructureRef:
    apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
    kind: GCPCluster
    name: miyadav-xxx-xxxx
    namespace: openshift-cluster-api

[miyadav@miyadav gcp]$ oc create -f cluster.yaml 
cluster.cluster.x-k8s.io/miyadav-2112v2-dpbkz created
[miyadav@miyadav gcp]$ oc get cluster 
NAME                   PHASE          AGE   VERSION
miyadav-2112v2-dpbkz   Provisioning   4s    
[miyadav@miyadav gcp]$ oc get cluster 
NAME                   PHASE          AGE     VERSION
miyadav-2112v2-dpbkz   Provisioning   2m16s   
[miyadav@miyadav gcp]$ oc get cluster 
NAME                   PHASE          AGE     VERSION
miyadav-2112v2-dpbkz   Provisioning   2m20s   
[miyadav@miyadav gcp]$ oc delete cluster miyadav-2112v2-dpbkz
cluster.cluster.x-k8s.io "miyadav-2112v2-dpbkz" deleted

Expected :
Error should occur like - deletion of cluster is not allowed
Actual - deletion happened successfully

Might be similar,  but may need different changes hence raising to track clearly  - https://issues.redhat.com/browse/OCPBUGS-1493.