Also use ~/.config/containers/auth.json for credentials

[userbradley]

For some of us, we don't use docker at all, and instead use podman.

Podman uses the ~/.config/containers/auth.json path for storing credentials, however ko is setup to use the ~/.docker/config.json file.

It would be nice to also use the ~/.config/containers/auth.json file for auth

Whilst it's no biggie to simply create the .docker directory, it's more of an annoyance than anything, especially if you don't have docker installed