feat(iroh): Accept custom protocols #8574

Job	Run time
Build wasm32	29s
Cross Test (i686-unknown-linux-gnu)	2m 32s
check_semver	5m 29s
Cross Build Only (armv7-linux-androideabi)	1m 2s
Cross Build Only (aarch64-linux-android)	1m 0s
Cross Build Only (x86_64-unknown-freebsd)	1m 6s
cargo deny	30s
Checking docs	1m 58s
Cross Build Only (x86_64-unknown-netbsd)	1m 15s
Checking fmt	6s
clippy_check	2m 29s
Minimal Supported Rust Version	1m 49s
Run network simulations/benchmarks	7m 7s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	3m 49s
CI Test Suite / Tests (ubuntu-latest, stable, all)	2m 36s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	3m 43s
CI Test Suite / Tests (ubuntu-latest, stable, none)	2m 14s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	3m 56s
CI Test Suite / Tests (ubuntu-latest, stable, default)	3m 14s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	3m 4s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	2m 58s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	2m 52s
	55m 18s

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