[Bug]: CI tests are failing during grpc-build

[lalitb]

What happened?

Error:

test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

     Running tests/integration_test.rs (target/debug/deps/integration_test-07b263362dfe3560)

running 3 tests
test duplicate_metrics ... ok
test multiple_scopes ... ok
test prometheus_exporter_integration ... ok

test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s

     Running unittests src/lib.rs (target/debug/deps/opentelemetry_proto-a4fc5d2fabd1ea4f)

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

     Running tests/grpc_build.rs (target/debug/deps/grpc_build-38b445f54f67a829)

running 1 test
test build_tonic ... FAILED

failures:

---- build_tonic stdout ----
cargo:rerun-if-changed=src/proto/opentelemetry-proto/opentelemetry/proto/common/v1/common.proto
cargo:rerun-if-changed=src/proto/opentelemetry-proto/opentelemetry/proto/resource/v1/resource.proto
cargo:rerun-if-changed=src/proto/opentelemetry-proto/opentelemetry/proto/trace/v1/trace.proto
cargo:rerun-if-changed=src/proto/opentelemetry-proto/opentelemetry/proto/collector/trace/v1/trace_service.proto
cargo:rerun-if-changed=src/proto/opentelemetry-proto/opentelemetry/proto/metrics/v1/metrics.proto
cargo:rerun-if-changed=src/proto/opentelemetry-proto/opentelemetry/proto/collector/metrics/v1/metrics_service.proto
cargo:rerun-if-changed=src/proto/opentelemetry-proto/opentelemetry/proto/logs/v1/logs.proto
cargo:rerun-if-changed=src/proto/opentelemetry-proto/opentelemetry/proto/collector/logs/v1/logs_service.proto
cargo:rerun-if-changed=src/proto/tracez.proto
cargo:rerun-if-changed=src/proto/opentelemetry-proto
cargo:rerun-if-changed=src/proto
thread 'build_tonic' panicked at opentelemetry-proto/tests/grpc_build.rs:116:9:
generated file has changed but it's a CI environment, please rerun this test locally and commit the changes
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace


failures:
    build_tonic

test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s

error: test failed, to rerun pass `-p opentelemetry-proto --test grpc_build`

API Version

0.22.0

SDK Version

0.22.0

What Exporters are you seeing the problem on?

No response

Relevant log output

No response

[lalitb]

ok the newer version of prost v0.12.4 is adding a header comment in the compiled proto rust files because of below change:

tokio-rs/prost#935

Will recompile the proto files with newer prost version, and raise a PR.