inkstone: strict fake /keys, refused-key cleanup test, injectable probe backoff - #841

at start (/home/runner/work/plugins/plugins/packages/window-warmup/tests/fake-gateway.ts:112:68) at fetch (/home/runner/work/plugins/plugins/packages/window-warmup/tests/fake-gateway.ts:109:26)

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-node@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/