WDYT about moving everything under pkg up a level, so it's chainguard.dev/sdk/auth/aws, chainguard.dev/sdk/events/admission, chainguard.dev/sdk/uidp, etc.?

There's no conflict with proto, and it makes importpaths a little smaller and tidier. I'm not sure what kind of downstream breakages/refactors this would entail, but it's probably easier to do it now than later, if we ever want to do it.