Add protobuf as makedepends

Acid Xeonrequested to merge
(removed):patch-1 into main

Currently build with a vendored one [1], replace with the system one instead.

[1] https://github.com/maelstrom-software/maelstrom/blob/v0.12.0/crates/maelstrom-client-base/build.rs#L5-L23

Merge request reports