feat(iroh-net): local swarm discovery #8767

Job	Run time
cargo deny	31s
Checking fmt	10s
Checking docs	1m 37s
check_semver	4m 31s
clippy_check	2m 48s
Cross Build Only (armv7-linux-androideabi)	1m 4s
Cross Test (i686-unknown-linux-gnu)	2m 37s
Cross Build Only (aarch64-linux-android)	2m 41s
Build wasm32	46s
Cross Build Only (x86_64-unknown-freebsd)	1m 8s
Cross Build Only (x86_64-unknown-netbsd)	1m 10s
Minimal Supported Rust Version	1m 44s
Run network simulations/benchmarks	5m 9s
CI Test Suite / Tests (ubuntu-latest, stable, all)	3m 39s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	4m 5s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	4m 0s
CI Test Suite / Tests (ubuntu-latest, stable, none)	7m 51s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	3m 56s
CI Test Suite / Tests (ubuntu-latest, stable, default)	3m 12s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	3m 58s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	3m 11s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	3m 36s
	1h 3m 24s

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