rpcsrv: support Map parameter in `invokefunction` RPC handler #2911

Job	Run time
Build CLI (ubuntu-20.04, linux, amd64)	36s
Build CLI (ubuntu-20.04, linux, arm64)	13s
Build CLI (windows-2022, windows, amd64)	4m 2s
Build CLI (macos-12, darwin, amd64)	1m 22s
Build CLI (macos-12, darwin, arm64)	44s
Build and push docker image (Windows Server Core)	21m 54s
Build and push docker image	7m 15s
	36m 6s

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