feat(iroh-net): Implement `websocket` protocol upgrade in iroh-relay #8699

Job	Run time
Cross Build Only (armv7-linux-androideabi)	40s
Cross Build Only (aarch64-linux-android)	46s
Cross Build Only (x86_64-unknown-freebsd)	42s
check_semver	4m 45s
Cross Test (i686-unknown-linux-gnu)	44s
Build wasm32	28s
Cross Build Only (x86_64-unknown-netbsd)	41s
cargo deny	31s
Checking docs	1m 3s
Checking fmt	10s
clippy_check	1m 23s
Minimal Supported Rust Version	1m 4s
Run network simulations/benchmarks	25s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	1m 21s
CI Test Suite / Tests (ubuntu-latest, stable, all)	27s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	1m 18s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	1m 23s
CI Test Suite / Tests (ubuntu-latest, stable, none)	25s
CI Test Suite / Tests (ubuntu-latest, stable, default)	27s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	33s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	34s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	31s
	20m 21s

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