Tests

Add essential EIP-7756 tracing fields #4878

Job	Run time
check no_std	23s
clippy	1m 6s
check no_std kzg-rs	35s
check	21s
docs	58s
check serde	26s
check std	20s
fmt	10s
TyposCheck	6s
test stable --no-default-features	21s
test stable	23s
test stable --all-features	34s
test beta --no-default-features	27s
test beta	29s
test beta --all-features	44s
test nightly --no-default-features	24s
test nightly	25s
test nightly --all-features	37s
	8m 49s

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