[GH] (fluss/commit-generated-proto): Workflow run "CI" is working again!

[GitBox <gi...@apache.org>]

The GitHub Actions job "CI" on fluss.git/commit-generated-proto has succeeded.
Run started by GitHub user seokjin0414 (triggered by fresh-borzoni).

Head commit for run:
f5524cdcd5535071a18ef9728a3abc9e364a7899 / seokjin0414 <sa...@hanmail.net>
[rust] Drop remaining protoc requirements and vendor proto with crate

Address review feedback on the checked-in protobuf code:
- gen now always reads the canonical FlussApi.proto and refreshes a
  vendored copy at crates/fluss/proto/FlussApi.proto that is committed
  and ships with the crate (arrow-flight pattern); a new test fails when
  the copy drifts from the canonical proto, without needing protoc.
- Delete scripts/vendor-proto.sh and bindings/cpp/scripts/ensure_protoc.sh
  along with their callers and docs.
- Remove protoc installs from client-integration, python-release,
  rust-release and gateway CI; drop the protoc gate and PROTOC plumbing
  from the C++ CMake and Bazel builds.
- Pin protoc 27.1 in the proto-up-to-date job, name the fix in its
  failure message and upload the regenerated files as an artifact.
- Point FlussApi.proto at regen.sh and update the protoc mentions in the
  website and fluss-rust docs.
- Regenerate fluss-gateway/Cargo.lock and DEPENDENCIES.rust.tsv, which
  no longer pull prost-build once fluss-rs has no build script.

Signed-off-by: seokjin0414 <sa...@hanmail.net>

Report URL: https://github.com/apache/fluss/actions/runs/32584887623

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