test: Adding rpcs test to csharp #2897

Job	Run time
Format C#	2m 56s
Verify Versions	10s
Build C++ Packages [tar.gz]	1m 33s
Build Angular	36s
Build C++ Packages [deb]	2m 13s
Build C++ Packages [rpm]	2m 28s
Build Java	41s
Build Web	31s
Format C++	13s
Format Protobuf	8s
Check linting, formatting and typing	19s
Format and check Rust (stable)	1m 59s
Lint JS	18s
Format and check Rust (nightly)	2m 8s
	16m 13s

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