[Feature Request] Auto publish image to ghcr.io

[DCjanus]

Thank you for this awesome project. I am trying to introduce this tool into the projects within the company, hoping to provide a Makefile target that allows my colleagues to execute make codecount on their computers and see a beautiful code line count statistics.

However, I cannot require all my colleagues to pre-install the Rust toolchain or download Tokei binary. Fortunately, our workflow relies heavily on Docker, so I can assume that all my colleagues have Docker installed.

Therefore, I can write my Makefile like this:

codecount:
    docker run --rm -v $(pwd):/src $(IMAGE_NAME) .

Since Tokei currently does not have an official Docker image distribution channel, it means that I need to maintain an internal image of Tokei in the enterprise and keep up with upstream changes continuously.

I believe there will be others with similar needs, so I hope to create a GitHub Action that builds and pushes tokei image to public Docker Registry.
For now, I tend to push the image to ghcr.io because it integrates well with GitHub action.

If everyone is willing to accept this feature request, I am happy to implement it when I have time.

[XAMPPRocky]

Thank you for your issue! I'm certainly open to publishing an image for releases, right now my time is pretty busy, so I'd be willing accept a contribution updating the GitHub actions to publish the image.