fix(iroh): Parse DNS answer with multiple records into a proper `NodeAddr` #12121

Job	Run time
Cross Build Only (x86_64-unknown-freebsd)	43s
Checking fmt	14s
Android Build Only (aarch64-linux-android)	1m 4s
check_semver	2m 38s
Android Build Only (armv7-linux-androideabi)	1m 5s
Cross Test (i686-unknown-linux-gnu)	2m 0s
Build wasm32	29s
cargo deny	29s
Checking docs	1m 1s
clippy_check	2m 10s
codespell	4s
Minimal Supported Rust Version	56s
CI Test Suite / Tests (ubuntu-latest, stable, all)	2m 48s
CI Test Suite / Tests (ubuntu-latest, stable, none)	2m 39s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	2m 11s
CI Test Suite / Tests (ubuntu-latest, stable, default)	2m 24s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	2m 7s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	2m 41s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	2m 5s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	2m 16s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	2m 29s
netsim-integration-tests / Netsim	5m 35s
	40m 8s

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