fix(iroh): keep rpc tasks seperate from protocol tasks #8748

Job	Run time
Checking docs	1m 6s
Checking fmt	8s
cargo deny	30s
check_semver	4m 47s
clippy_check	2m 43s
Cross Build Only (armv7-linux-androideabi)	1m 3s
Cross Build Only (aarch64-linux-android)	1m 1s
Cross Test (i686-unknown-linux-gnu)	2m 34s
Cross Build Only (x86_64-unknown-freebsd)	1m 8s
Minimal Supported Rust Version	1m 13s
Run network simulations/benchmarks	1m 42s
Cross Build Only (x86_64-unknown-netbsd)	1m 8s
Build wasm32	28s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	4m 3s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	4m 4s
CI Test Suite / Tests (ubuntu-latest, stable, all)	3m 16s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	3m 56s
CI Test Suite / Tests (ubuntu-latest, stable, none)	2m 13s
CI Test Suite / Tests (ubuntu-latest, stable, default)	2m 21s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	3m 17s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	2m 56s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	2m 59s
	48m 36s

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