grpc/cpp at febe0f1458a1d057c2e08cb608904f1dfd6bf9a6 - grpc

The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#) https://grpc.io/

Stanley Cheung b4b6319ecc [Observability] Fix CPP observability test docker build (#34081 An error occurred ) CPP Observability test started failing about [2 weeks ago](https://fusion2.corp.google.com/ci/kokoro/prod:grpc-gcp%2Ftools%2Fobservability%2Fmaster%2Fcontinuous_cpp/activity/401f3183-4097-4090-9142-d2cfe19bdf8a/log). Turns out the `grpc/grpc` repo [added](`c73e743637 (diff-2f754321d62f08ba8392b9b168b83e24ea2852bb5d815d63e767f6c3d23c6ac5)`) a `.dockerignore` file which ignores `.git` directory on `COPY` commands. This broke the observability test docker build stage because there was a `git submodule update` command. But on the other hand, this `git submodule update` command in the Observability test docker file isn't necessary and can be removed. Adhoc test run based on this PR passed: https://fusion2.corp.google.com/invocations/09ce384f-c077-4666-9a85-3ca890db6a80/log		2 years ago
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Dockerfile	[Observability] Fix CPP observability test docker build (#34081 An error occurred )	2 years ago
build_docker.sh	GCP Observability testing for C++ (#32531 An error occurred )	2 years ago
run.sh	Observability Testing: Pass interop parameters to each lang's run.sh script as-is (#32586 An error occurred )	2 years ago