chore(deps-dev): bump @biomejs/biome from 2.5.0 to 2.5.6 - #1695

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/cache@v3, actions/checkout@v3, actions/setup-node@v3, codecov/codecov-action@v3, pnpm/action-setup@v2. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/