general: Update Dockerfile build node to version 20

[amenk]

Project was updated to node 20, this makes the Dockerimage compatible

• we switch the image to a Debian based one, because some node binaries are not available directly for alpine and would need to be built

The docker image is currently not automatically build in this repo, we might add an action like this:

https://github.com/OpenPlaceGuide/osmapp/blob/opg-master/.github/workflows/docker-image.yml

But we can also leave it semi-supported in here and I will take care of it, when I spot problems.

[vercel]

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[zbycz]

Hi @amenk, thanks for the changes. Since we don't use docker for running OsmAPP production, I prefer not to run it on every commit to master.

If you can find some unobtrusive option, we can add it. Sth like running nightly + not showing up in the master branch checks, but only when you click the specific workflow in actions menu? Not sure if this is possible though 😄

[amenk]

All good - Let's leave it like this. We are irregularly rebasing onto OSM app and will check this way and provide a pull request if necessary.

[zbycz]

@amenk Great, thanks!