feat: add GrpcMethod extension into request for client #1275
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Motivation
The request was added with the GrpcMethod extension in the gRPC client code generated on tonic-build, for this reason, we can inspect the gRPC method info within the client interceptor function. In the future, this feature could be used for supporting Prometheus middleware metrics on a common basis.
Solution
Update tonic-build to generate client-side codes that support the GrpcMethod extension. Why not review the code changes in this file, tonic-health/src/generated/grpc.health.v1.rs, to see the differences? 😄