Make `alloy_rpc_types_eth::SubscriptionResult` generic over tx #3392

Job	Run time
doctest	2m 15s
test ubuntu-latest stable --no-default-features	2m 2s
test ubuntu-latest stable	2m 14s
feature-checks	5m 46s
test ubuntu-latest nightly --no-default-features	2m 41s
no-std	20s
test ubuntu-latest nightly	2m 41s
test ubuntu-latest 1.76 --no-default-features	1m 22s
wasm-unknown	1m 13s
clippy	1m 3s
test ubuntu-latest 1.76	1m 31s
docs	2m 3s
test windows-latest stable --no-default-features	7m 24s
fmt	12s
test windows-latest stable	5m 33s
cfg-check	1m 21s
test windows-latest nightly --no-default-features	6m 5s
wasm-wasi	1m 54s
test windows-latest nightly	6m 26s
test windows-latest 1.76 --no-default-features	3m 5s
test windows-latest 1.76	3m 45s
	1h 0m 56s

Provide feedback