Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

MIME.valid?/1 is deprecated. Use MIME.extensions(type) != [] instead.

function Mix.ensure_application!/1 is undefined or private