Upgrade rust/crates/protobuf to 2.23.0 am: e2ec686283

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/protobuf/+/1712910

Change-Id: Ie6b9279ffa8c1a1f64bb961ad982be79a27d21a4
tree: 3332414002f1fc846d5c593affbb715b50837aa7
  1. benches/
  2. out/
  3. src/
  4. .cargo_vcs_info.json
  5. Android.bp
  6. build.rs
  7. Cargo.toml
  8. Cargo.toml.orig
  9. cargo2android.json
  10. LICENSE.txt
  11. METADATA
  12. MODULE_LICENSE_MIT
  13. OWNERS
  14. README.md
  15. regenerate.sh
README.md

How to develop rust-protobuf itself

cargo test --all to build everything.

If code generator is changed, code needs to be regenerated, see regenerate.sh.