Upgrade to Node 20 and add outputs

[jgillick]

• Github Actions is deprecating Node 12.
• Added the following outputs:
  • found-artifact: boolean
  • path : string
• Used ncc to bundle the script and dependencies into a single JS file (dist/index/js), so that node_modules doesn't need to be committed to github.

Now, every time main.js is updated, you'll need to run npm script build to generate the compiled script. If you prefer bundling node_modules, we can revert this change. However, committing node_modules makes PRs pretty messy because they'll include every file that changed in all of the modules.

[aochmann]

@jgillick thanks for submit PR - I will review and come to you with update. BTW. sorry for so late response 🙏🏻

[ardittristan]

Github is now deprecating node16 and using node20

[jgillick]

I've updated the PR to node20 and removed the automatic formatting my IDE applied to main.js. I also updated the PR description explaining why node_modules has been removed.

[jgillick]

If anybody else want to use this before the PR is merged, you can update your YML files to use jgillick/actions-download-artifact@master