de-facto quickchart docker image ianw/quickchart appears abandoned #178

Hi, we have been using the popular ianw/quickchart docker image for a while now. Recently, we were alerted to a vulnerability in it that meant we had to fork and build the image ourselves, as it has not been updated in about a year.

I'm aware that the existing image is not managed by this repo - would you be interested in a PR setting up CI actions to build and push docker images into Docker Hub automatically? This would potentially increase the maintenance burden of the project (managing OS + system library upgrades), so I understand if it's not something you're interested in.

Thanks for your work on the project; let me know if the above is something you're interested in, or if I should look at setting up a new docker hub image of my own with the updates we've done.