Add dev shell environment #902

Job	Run time
build (stellar-cli, stellar, ubuntu-20.04, x86_64-unknown-linux-gnu)	15m 13s
build (stellar-cli, stellar, ubuntu-20.04, aarch64-unknown-linux-gnu)	16m 9s
build (stellar-cli, stellar, macos-14, x86_64-apple-darwin)	10m 27s
build (stellar-cli, stellar, macos-12, aarch64-apple-darwin)	16m 59s
build (stellar-cli, stellar, windows-latest, x86_64-pc-windows-msvc, .exe)	20m 6s
build (soroban-cli, soroban, ubuntu-20.04, x86_64-unknown-linux-gnu)	14m 48s
build (soroban-cli, soroban, ubuntu-20.04, aarch64-unknown-linux-gnu)	15m 54s
build (soroban-cli, soroban, macos-14, x86_64-apple-darwin)	9m 4s
build (soroban-cli, soroban, macos-12, aarch64-apple-darwin)	15m 0s
build (soroban-cli, soroban, windows-latest, x86_64-pc-windows-msvc, .exe)	21m 2s
	2h 34m 42s

Provide feedback