feat: derive Clone for all RPC types #149

Job	Run time
Build (ubuntu-latest, x86_64-unknown-linux-gnu, amd64)	2m 48s
Integration tests (ubuntu-20.04, 1.21, .CLI.)	3m 4s
Build (ubuntu-latest, aarch64-unknown-linux-gnu, arm64)	2m 46s
Unit tests (ubuntu-20.04, 1.21)	4m 30s
Integration tests (ubuntu-20.04, 1.21, ^Test(([^C])\|(C[^L])\|(CL[^I])).*$)	11m 40s
Build (macos-latest, x86_64-apple-darwin, amd64)	3m 22s
Unit tests (ubuntu-22.04, 1.21)	3m 53s
Integration tests (ubuntu-22.04, 1.21, .CLI.)	3m 1s
Build (macos-latest, aarch64-apple-darwin, arm64)	5m 15s
Integration tests (ubuntu-22.04, 1.21, ^Test(([^C])\|(C[^L])\|(CL[^I])).*$)	11m 35s
Build (windows-latest, x86_64-pc-windows-gnu, amd64)	7m 50s
	59m 44s

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