Fix sync worker stall on persistent errors - #1305

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v3.3.0, actions/setup-java@v3.10.0, actions/upload-artifact@v4, gradle/gradle-build-action@v2.4.2. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Failed to restore v7-gradle|Linux|build[37a6259cc0c1dae299a7866489dff0bd]-e0f3f8de3f96579b05c9314f8eb8cdfa911dd3f3: Error: Cache service responded with 400