Node.js 12 actions are deprecated

[cmhughes]

Thanks very much for this project, I've used it successfully on latexindent, and it worked great, nice work :)

You'll see at https://github.com/cmhughes/latexindent.pl/actions/runs/4665137035 that it says

Node.js 12 actions are deprecated. Please update the following actions to use Node.js 16: paolobrasolin/ctan-submit-action@v1. For more information see: https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/

I don't know if it's helpful to report this, do feel free to close this if not helpful.