stellar-rpc-client: Add support for new simulateTransaction stateChan… #210

Job	Run time
Build (ubuntu-latest, x86_64-unknown-linux-gnu, amd64)	2m 41s
Build (ubuntu-latest, aarch64-unknown-linux-gnu, arm64)	2m 57s
Integration tests (ubuntu-20.04, 1.22)	14m 21s
Unit tests (ubuntu-20.04, 1.22)	3m 40s
Integration tests (ubuntu-22.04, 1.22)	14m 24s
Unit tests (ubuntu-22.04, 1.22)	3m 40s
Build (macos-latest, x86_64-apple-darwin, amd64)	5m 38s
Build (macos-latest, aarch64-apple-darwin, arm64)	4m 4s
Build (windows-latest, x86_64-pc-windows-gnu, amd64)	8m 14s
	59m 39s

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