Update maintainer file to match maintainers file

[riaankleinhans]

https://github.com/distribution/distribution/blob/main/MAINTAINERS

[milosgajdos]

Sargun never accepted his invite, so Im not sure he should be in this list

[riaankleinhans]

@milosgajdos when the maintainer make that call and update the maintainers.yaml please let me know that I can update this PR as well to get the .project maintainer automation going.

[milosgajdos]

@milosgajdos when the maintainer make that call and update the maintainers.yaml please let me know that I can update this PR as well to get the .project maintainer automation going.

I think this whole list could use real pruning; I feel like the only person still running around this project and doing reviews are me and a few people I chase personally.

I think, maybe a CNCF poilcy needs to change when it comes to pruning inactive people.

On that note, I have had no contact with @sargun recently - I chased him to accept the invite several times past couple of years to no avail.

[sargun]

I failed to see the place to accept the invite. Please reshare. We are still using distribution heavily.