feat: add Changesets v3 support - #252

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683, actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020, autofix-ci/action@635ffb0c9798bd160680f18fd73371e355b85f27. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/