stitcher-moq: client on moq-tokio 0.19.20 (moqt-22), moq-dev-rs adapter fix for moq-relay 0.15, registry refresh - #134

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. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/