official container images from grafeas / Kritis

[mvanholsteijn]

Is your feature request related to a problem? Please describe.
Currently the Kritis binaries are not available as container images.

Describe the solution you'd like
I would like to have official binary releases as container images from a google registry (gcr.io), from docker hub and/or the GitHub registry.

Describe alternatives you've considered
I am currently building my own binaries, but this is just an extra step which I would like to avoid.

Additional context
No additional context.