replace uses of distributions registry-client because it's deprecated and removed #46940
Description
Description
relates to
- Move registry client internal distribution/distribution#4126
- Make registry client private for v3 distribution/distribution#4119
The distribution's client was moved to an internal package, and docker/distribution ("v2") is about to be deprecated in favour of distribution/distribution "v3".
We need to replace uses of the client package in our code (we can temporarily use an internal fork if needed), and migrate to github.com/distribution/distribution v3 for the remaining parts we need (if any).