load-dotenv action is issuing warnings

[Bzomak]

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: aarcangeli/load-dotenv@v1.0.0. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

Action is possibly unmaintained. Options are:

1. Manually using cat and echo to load the files
2. Fork and fix it
3. Take the learning opportunity to write my own action