feat(iroh-net)!: Improve initial connection latency #8139

Job	Run time
cargo deny	38s
Checking fmt	14s
Checking docs	1m 41s
check_semver	3m 28s
clippy_check	2m 39s
Cross compile (i686-unknown-linux-gnu)	2m 28s
Minimal Supported Rust Version	1m 33s
Cross compile (armv7-linux-androideabi)	1m 0s
Run network simulations/benchmarks	7m 56s
Cross compile (aarch64-linux-android)	58s
CI Test Suite / Tests (ubuntu-latest, stable, all)	3m 25s
CI Test Suite / Tests (ubuntu-latest, stable, none)	36s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	3m 54s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	3m 53s
CI Test Suite / Tests (ubuntu-latest, stable, default)	35s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	3m 48s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	3m 43s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	37s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	41s
	43m 47s

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