feat(ci): patch ci cycle check

[nhtyy]

This PR adds a CI workflow to compare cycle counts if there are changes to patch-testing/*.

Note: Some tests are non deterministic in their cycle count.

[github-actions]

Test	Old	New	Diff
rust_crypto_rsa_test_pkcs_verify_100	174390482	174934218	-0.3118 %
curve25519_dalek_ng_test_decompressed_noncanonical	204793	204793	0.0000 %
p256_test_recover_pubkey_infinity	417746	417746	0.0000 %
curve25519_dalek_ng_test_zero_mul	197964	197964	0.0000 %
curve25519_dalek_ng_test_add_then_multiply	5250637	6791187	-29.3402 %
p256_test_verify_rand_lte_100	1202667473	1202571226	0.0080 %
bls12_381_tests_test_inverse_fp2_100	3085079	3085079	0.0000 %
bn_test_bn_test_g1_add_100	811492	811485	0.0009 %
k256_test_verify_rand_lte_100	461766339	461681433	0.0184 %
secp256k1_program_test_recover_rand_lte_100	16583422	16563990	0.1172 %
rustcrypto_bigint_test_bigint_mul_mod_special	2332628	2332628	0.0000 %
keccack_test_expected_digest_lte_100	2032597	2032926	-0.0162 %
curve25519_dalek_test_zero_msm	213931	213931	0.0000 %
curve25519_dalek_test_decompressed_expected_value	15999990	15999990	0.0000 %
p256_test_recover_rand_lte_100	65983441	65980867	0.0039 %
curve25519_dalek_test_ed25519_verify	32286281	32287184	-0.0028 %
bls12_381_tests_test_sqrt_fp_100	1106903	1106859	0.0040 %
bls12_381_tests_test_sqrt_fp2_100	1833214	1882757	-2.7025 %
bn_test_bn_test_fq_sqrt_100	989049	989049	0.0000 %
sha_test_sha2_expected_digest_lte_100_times	3771654	3763769	0.2091 %
bn_test_bn_test_g1_double_100	624788	624809	-0.0034 %
curve25519_dalek_test_decompressed_noncanonical	9263	9263	0.0000 %
bls12_381_tests_test_inverse_fp_100	1607625	1607625	0.0000 %
bls12_381_tests_test_bls_add_100	15580049	15580049	0.0000 %
bn_test_bn_test_fq_inverse_100	969449	969449	0.0000 %
curve25519_dalek_ng_test_zero_msm	217587	217587	0.0000 %
k256_test_recover_rand_lte_100	15566108	15565228	0.0057 %
curve25519_dalek_test_zero_mul	197994	197994	0.0000 %
k256_test_recover_pubkey_infinity	364703	364703	0.0000 %
p256_test_recover_high_hash_high_recid	22089439	23679699	-7.1992 %
rustcrypto_bigint_test_bigint_mul_add_residue	2250012	2250012	0.0000 %
bn_test_bn_test_fr_inverse_100	990649	990649	0.0000 %
secp256k1_program_test_verify_rand_lte_100	178901265	178813606	0.0490 %
sha_test_sha3_expected_digest_lte_100_times	1793419	1793346	0.0041 %
k256_test_recover_high_hash_high_recid	9712388	9945596	-2.4011 %
bls12_381_tests_test_bls_double_100	9670245	9670245	0.0000 %
curve25519_dalek_test_add_then_multiply	6639271	7854928	-18.3101 %

[ratankaliani]

LGTM