Add basics-ping module with /ping - #165

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-java@v4, actions/upload-artifact@v4, gradle/actions/setup-gradle@ec92e829475ac0c2315ea8f9eced72db85bb337a. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Failed to restore v9-gradle|Linux|build[51c21b6498ade158f996692ae7fba5b2]-cfb4e23de032f9bfaeac4e202ba2c34c2cfb3cb4: Error: Cache service responded with 400

setup-java v4 is deprecated and will no longer receive updates. Please migrate to actions/setup-java@v5.