fixup! feat: Add preflight checks framework

Handle create events only

Author: dlipovetsky

charts/cluster-api-runtime-extensions-nutanix/templates/webhooks.yaml

@@ -72,7 +72,6 @@ webhooks:
           - '*'
         operations:
           - CREATE
-          - UPDATE
         resources:
           - clusters
     sideEffects: None

pkg/webhook/preflight/doc.go

@@ -2,4 +2,4 @@
 // SPDX-License-Identifier: Apache-2.0
 package preflight
 
-// +kubebuilder:webhook:path=/preflight-v1beta1-cluster,mutating=false,failurePolicy=fail,groups="cluster.x-k8s.io",resources=clusters,verbs=create;update,versions=*,name=preflight.cluster.caren.nutanix.com,admissionReviewVersions=v1,sideEffects=None,timeoutSeconds=30
+// +kubebuilder:webhook:path=/preflight-v1beta1-cluster,mutating=false,failurePolicy=fail,groups="cluster.x-k8s.io",resources=clusters,verbs=create,versions=*,name=preflight.cluster.caren.nutanix.com,admissionReviewVersions=v1,sideEffects=None,timeoutSeconds=30