Node.js 16 actions are deprecated.

[kamiccolo]

For users of this action the following warning is shown (could be seen in runners of this repo as well):

Node.js 16 actions are deprecated.

Please update the following actions to use Node.js 20: 
  actions/checkout@v3
  actions/setup-node@v3.

For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

[kamiccolo]

Relate complaint from the bot:
#295

[patrick-dojofive]

When is this going to get closed out? Looks like both #434 and #444 try to address it