added info about default resource catalog in README - #887

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/cache@v4, actions/checkout@v4, actions/setup-java@v4, actions/upload-artifact@v4, gradle/actions/setup-gradle@v3.5.0, mikepenz/action-junit-report@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

This job uses deprecated functionality from the 'gradle/gradle-build-action' action. Consult the Job Summary for more details.

Failed to restore gradle-home-v1|macOS|build-library[e0f69cdca59a7584ac39076f87cdcc41]-63aef1300c1876a45bf2c6fe8d34a8b6a73e4e7a: Error: Cache service responded with 400