catalog-protos: remove protobuf dependency #33848
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(The first 3 commits are from #33843 and can be ignored here.)
This PR replaces the proto definitions in
mz-catalog-protos
with the equivalent Rust type definitions, obtained through protobuf codegen and subsequent cleanup. This removes the dependency onprost
and paves the way for removing one level ofStateUpdateKind
definitions.Note that the crate is still called
mz-catalog-protos
and there are plenty of references to "protos" left in other crates. Cleaning this up is left as a follow-up.Motivation
Step (2) of https://github.com/MaterializeInc/database-issues/issues/9792
Tips for reviewer
Checklist
$T ⇔ Proto$T
mapping (possibly in a backwards-incompatible way), then it is tagged with aT-proto
label.