Bump prettier from 3.9.4 to 3.9.8 - #272

Process completed with exit code 2.

Argument of type 'Function | undefined' is not assignable to parameter of type '((...args: any[]) => void) | undefined'.

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-node@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/