fix: Correct control plane field in NutanixVMImage preflight check (#1244)

**What problem does this PR solve?**:
Fixes a transposed path in the NutanixVMImage control plane field.

**Which issue(s) this PR fixes**:
Fixes #

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Author: dlipovetsky

pkg/webhook/preflight/nutanix/image.go

@@ -90,7 +90,7 @@ func newVMImageChecks(
 		checks = append(checks,
 			&imageCheck{
 				machineDetails: &cd.nutanixClusterConfigSpec.ControlPlane.Nutanix.MachineDetails,
-				field:          "$.spec.topology.variables[[email protected]==\"clusterConfig\"].value.nutanix.controlPlane.machineDetails", ///nolint:lll // Field is long.
+				field:          "$.spec.topology.variables[[email protected]==\"clusterConfig\"].value.controlPlane.nutanix.machineDetails", ///nolint:lll // Field is long.
 				nclient:        cd.nclient,
 			},
 		)

pkg/webhook/preflight/nutanix/imagekubernetesversioncheck.go

@@ -149,7 +149,7 @@ func newVMImageKubernetesVersionChecks(
 		checks = append(checks,
 			&imageKubernetesVersionCheck{
 				machineDetails:    &cd.nutanixClusterConfigSpec.ControlPlane.Nutanix.MachineDetails,
-				field:             "$.spec.topology.variables[[email protected]==\"clusterConfig\"].value.nutanix.controlPlane.machineDetails", ///nolint:lll // Field is long.
+				field:             "$.spec.topology.variables[[email protected]==\"clusterConfig\"].value.controlPlane.nutanix.machineDetails", ///nolint:lll // Field is long.
 				nclient:           cd.nclient,
 				clusterK8sVersion: clusterK8sVersion,
 			},