fix: remove --length parameter from SHA224/256/384/512 benchmarks

SHA224, SHA256, SHA384, and SHA512 algorithms don't support the --length
parameter since the length is implicit in their algorithm names. Only the
generic sha2 and sha3 algorithms require explicit length specification.

Author: naoNao89

src/uu/cksum/benches/cksum_bench.rs

@@ -100,10 +100,10 @@ bench_algorithm!(cksum_sha2, "sha2", "256");
 bench_algorithm!(cksum_sha3, "sha3", "256");
 bench_algorithm!(cksum_blake2b, "blake2b");
 bench_algorithm!(cksum_sm3, "sm3");
-bench_algorithm!(cksum_sha224, "sha224", "224");
-bench_algorithm!(cksum_sha256, "sha256", "256");
-bench_algorithm!(cksum_sha384, "sha384", "384");
-bench_algorithm!(cksum_sha512, "sha512", "512");
+bench_algorithm!(cksum_sha224, "sha224");
+bench_algorithm!(cksum_sha256, "sha256");
+bench_algorithm!(cksum_sha384, "sha384");
+bench_algorithm!(cksum_sha512, "sha512");
 bench_algorithm!(cksum_blake3, "blake3");
 bench_shake_algorithm!(cksum_shake128, "shake128", Shake128);
 bench_shake_algorithm!(cksum_shake256, "shake256", Shake256);