Bump k8s.io/client-go from 0.36.2 to 0.36.3 - #292

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v3, actions/setup-go@41dfa10bad2bb2ae585af6ee5bb4d7d973ad74ed. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

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