Tests

ci: remove useless ci #3

Job	Run time
check no_std	29s
check no_std kzg-rs	33s
docs	1m 7s
clippy	1m 22s
check	24s
fmt	13s
test stable --no-default-features	1m 2s
check serde	29s
test stable	1m 16s
TyposCheck	7s
check std	27s
test stable --all-features	1m 20s
test beta --no-default-features	58s
test beta	57s
test beta --all-features	1m 22s
test nightly --no-default-features	1m 5s
test nightly	1m 19s
test nightly --all-features	1m 12s
	15m 42s

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