soroban-rpc: Remove panics from internal codebase (#1167) #3236

Job	Run time
Build (ubuntu-latest, x86_64-unknown-linux-gnu, amd64)	2m 21s
Integration tests (ubuntu-20.04, 1.21, .CLI.)	23m 1s
Unit tests (ubuntu-20.04, 1.21)	7m 52s
Build (ubuntu-latest, aarch64-unknown-linux-gnu, arm64)	2m 36s
Integration tests (ubuntu-20.04, 1.21, ^Test(([^C])\|(C[^L])\|(CL[^I])).*$)	17m 57s
Unit tests (ubuntu-22.04, 1.21)	8m 37s
Build (macos-latest, x86_64-apple-darwin, amd64)	5m 24s
Integration tests (ubuntu-22.04, 1.21, .CLI.)	22m 11s
Build (macos-latest, aarch64-apple-darwin, arm64)	4m 57s
Integration tests (ubuntu-22.04, 1.21, ^Test(([^C])\|(C[^L])\|(CL[^I])).*$)	17m 28s
Build (windows-latest, x86_64-pc-windows-gnu, amd64)	8m 40s
	2h 1m 4s

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