soroban-rpc: Migrate Soroban Tools to Soroban RPC #11

Job	Run time
Unit tests (ubuntu-20.04, 1.21)	7m 17s
Integration tests (ubuntu-20.04, 1.21, .CLI.)	20m 19s
Unit tests (ubuntu-22.04, 1.21)	7m 50s
Build (ubuntu-latest, x86_64-unknown-linux-gnu, amd64)	2m 23s
Integration tests (ubuntu-20.04, 1.21, ^Test(([^C])\|(C[^L])\|(CL[^I])).*$)	17m 18s
Build (ubuntu-latest, aarch64-unknown-linux-gnu, arm64)	2m 50s
Integration tests (ubuntu-22.04, 1.21, .CLI.)	21m 6s
Build (macos-latest, x86_64-apple-darwin, amd64)	5m 25s
Integration tests (ubuntu-22.04, 1.21, ^Test(([^C])\|(C[^L])\|(CL[^I])).*$)	17m 19s
Build (macos-latest, aarch64-apple-darwin, arm64)	3m 21s
Build (windows-latest, x86_64-pc-windows-gnu, amd64)	6m 25s
	1h 51m 33s

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