Fix test extension to use correct image

Author: sbueringer

.github/ISSUE_TEMPLATE/release_tracking.md

@@ -64,6 +64,7 @@ After the Kubernetes minor release:
         checking out the release tag of `https://github.com/kubernetes/cloud-provider-vsphere` and running:
         `helm template charts/vsphere-cpi --namespace kube-system > ../../sigs.k8s.io/cluster-api-provider-vsphere/packaging/flavorgen/cloudprovider/cpi/cpi.yaml`
     * Bump in:
+      * `test/extension/handlers/topologymutation/handler.go`
       * `test/e2e/data/infrastructure-vsphere-govmomi/main/clusterclass/patch-vsphere-template.yaml`
       * `test/e2e/data/infrastructure-vsphere-supervisor/main/clusterclass/patch-vsphere-template.yaml`
     * Prior art: https://github.com/kubernetes-sigs/cluster-api-provider-vsphere/pull/3294

test/extension/handlers/topologymutation/handler.go

@@ -345,13 +345,18 @@ func calculateImageName(templateVariables map[string]apiextensionsv1.JSON, isCon
 		return "", err
 	}
 
-	// Use known image.
+	// Use known ubuntu-2204 image.
 	if version == "v1.28.0" || version == "v1.29.0" || version == "v1.30.0" {
 		return fmt.Sprintf("ubuntu-2204-kube-%s", version), nil
 	}
 
-	// Fallback to ubuntu-2404-kube-v1.31.0 otherwise
-	return "ubuntu-2404-kube-v1.31.0", nil
+	// Use known ubuntu-2404 image.
+	if version == "v1.31.0" || version == "v1.32.0" || version == "v1.33.0" || version == "v1.34.0" {
+		return fmt.Sprintf("ubuntu-2404-kube-%s", version), nil
+	}
+
+	// Fallback otherwise
+	return "ubuntu-2404-kube-v1.35.0", nil
 }
 
 // ValidateTopology implements the HandlerFunc for the ValidateTopology hook.