fix(consensus): add conversion for `OpTxType::Eip7702` #865

Job	Run time
cfg-check	24s
clippy	47s
docs	29s
doctest	50s
feature-checks	2m 2s
feature-powerset	3m 57s
fmt	16s
no-std	27s
test stable --no-default-features	50s
wasm-unknown	25s
wasm-wasi	23s
test stable	1m 7s
test stable --all-features	1m 11s
test nightly --no-default-features	41s
test nightly	53s
test nightly --all-features	1m 14s
test 1.81 --no-default-features	39s
test 1.81	41s
	17m 16s

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