Update kms docker to use distroless

[giuseppe-sky]

https://core-platform-wiki.dev.cosmic.sky/base-images/Core-Platform-Base-Images.html

[r-glyde]

Hi @giuseppe-sky. Could you please provide a bit more context for this? Have you been told that any service you are using must use these base images? This project has been open sourced I believe so is available to non-sky users.

We'll need to have a bit of a look but initial feeling is that open projects should be using open base images.

[lacarvalho91]

Agreed with @r-glyde, the issue description doesn't describe anything.