[external-lb]: kubelet.conf server address and kube-proxy api-server address fix (#10490)

* [external-lb-kubeconfig]: fix server address in worker kubelet.conf

Signed-off-by: Ugur Ozturk <ugurozturk918@gmail.com>

* [external-lb-kubeconfig]: fix server address in kube-proxy

Signed-off-by: Furkan Pehlivan <furkanpehlivan34@gmail.com>

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Signed-off-by: Ugur Ozturk <ugurozturk918@gmail.com>
Signed-off-by: Furkan Pehlivan <furkanpehlivan34@gmail.com>
Co-authored-by: Furkan Pehlivan <furkanpehlivan34@gmail.com>