kubeadm: Document ControlPlaneKubeletLocalMode promotion to beta

[chrischdi]

Description

This change documents the promotion of kubeadm's ControlPlaneKubeletLocalMode feature gate to beta.

/hold not sure if I should change the chinese version or if it is generated in some way or needs a separate PR to separate branch.

Issue

Part of:

• kubeadm: make a control-plane's kubelet talk to the local API Server on kubeadm join. enhancements#4471

Note: the following PR should merge first:

• kubeadm: Promote ControlPlaneKubeletLocalMode feature gate to beta kubernetes#129716

[chrischdi]

/assign @neolit123

[sftim]

not sure if I should change the chinese version or if it is generated in some way or needs a separate PR to separate branch.

Just English for this PR please.

Also, changes linked to v1.33 go in the branch dev-1.33 (main is the published documentation)

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[sftim]

/remove-area localization
/remove-language zh

[sftim]

Maintaining
/hold

for kubernetes/kubernetes#129716

[neolit123]

/lgtm
commented on the k/k pr

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 63c3fcac7c05e412efd46ba4b97e59d156fe53c3

[neolit123]

/sig cluster-lifecycle

[neolit123]

• kubeadm: Promote ControlPlaneKubeletLocalMode feature gate to beta kubernetes#129716
  is lgtm/approved

/hold cancel

[neolit123]

/hold for now

we reverted the k/k PR:

• Revert "kubeadm: Promote ControlPlaneKubeletLocalMode feature gate to beta" kubernetes#129878