Picklo gemini default - #13

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, DataDog/synthetics-ci-github-action@87b505388a22005bb8013481e3f73a367b9a53eb. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/