Add status.version field in AWSManagedControlPlane

[AbdullahAlShaad]

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/kind feature

Describe the solution you'd like The field will be helpful when updating the Kubernetes version of AWSManagedControlPlane. The field can be updated to the newest version after successful upgrade operation.

Anything else you would like to add: Capi ControlPlaneContract checks the field status.update when updating the ControlPlane version through topology.

https://github.com/kubernetes-sigs/cluster-api/blob/main/internal/contract/controlplane.go#L64