Add features tests for gRPC retry behavior #894

Job	Run time
build-python (ubuntu-latest)	23s
build-dotnet (ubuntu-latest)	25s
build-java (ubuntu-latest)	34s
build-go (ubuntu-latest)	34s
build-ts (ubuntu-latest)	23s
latest-sdk-versions	1s
feature-tests-python / test	1m 36s
feature-tests-ts / test	1m 58s
feature-tests-dotnet / test	57s
feature-tests-go / test	2m 3s
feature-tests-java / test	2m 11s
build-docker-images / build-go-docker-images / Build go docker image	5m 27s
build-docker-images / build-java-docker-images / Build java docker image	4m 54s
build-docker-images / build-python-docker-images / Build py docker image	3m 42s
build-docker-images / build-ts-docker-images / Build ts docker image	5m 1s
build-docker-images / build-dotnet-docker-images / Build cs docker image	2m 2s
	32m 11s

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