feat: `op-alloy` meta crate #743

Job	Run time
doctest	11s
test stable --no-default-features	12s
test stable	11s
clippy	13s
test stable --all-features	12s
feature-checks	13s
test nightly --no-default-features	11s
no-std	13s
test nightly	10s
wasm-unknown	15s
test nightly --all-features	14s
wasm-wasi	12s
test 1.81 --no-default-features	13s
docs	11s
test 1.81	13s
fmt	11s
cfg-check	11s
feature-powerset	11s
	3m 37s

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