fix: remove stdsimd feature; add stdarch_x86_avx512
#287
| Job | Run time |
|---|---|
| 7s | |
| 2m 32s | |
| 25s | |
| 2m 17s | |
| 38m 27s | |
| 3m 7s | |
| 2m 45s | |
| 35m 33s | |
| 2m 38s | |
| 2m 12s | |
| 33m 58s | |
| 2m 3s | |
| 1m 43s | |
| 1m 52s | |
| 1m 58s | |
| 1m 39s | |
| 2m 0s | |
| 1m 38s | |
| 1m 59s | |
| 2h 18m 53s |