Tests

Split Inspector trait from EthHandler into standalone crate #4991

Job	Run time
docs	1m 6s
check	17s
check no_std	24s
clippy	1m 25s
check serde	22s
check no_std kzg-rs	29s
check std	26s
fmt	7s
test stable --no-default-features	27s
TyposCheck	5s
test stable	27s
test stable --all-features	59s
test beta --no-default-features	40s
test beta	39s
test beta --all-features	1m 1s
test nightly --no-default-features	38s
test nightly	33s
test nightly --all-features	1m 0s
	11m 5s

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