chore!: update libcmt to machine-guest-tools v0.18.0 - #1

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684, actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683, actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065, docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2, docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/