Update Node Version on Github Actions

[MartinPlayon]

The current GitHub actions are using

 - uses: actions/setup-node@v3
        with:
          node-version: 16.x

This version is out of support. The point of discussion is whether to move to 20 or 18.

20 is about to become LTS, but I don't think that most images are there yet. I know that lambdas are only at 18.

[moishinetzer]

Feel free to open a PR lets see if CI/CD passes

[MartinPlayon]

Using node version 18 or 20 runs fine, and even updating most of the packages to recent versions seems to work fine, but esbuild-css-modules-plugin version 3 causes a build failure.