Build mpdecimal on Windows and fix Python 3.13 validation
#100
| Job | Run time |
|---|---|
| 2m 41s | |
| 20m 33s | |
| 19m 40s | |
| 20m 7s | |
| 22m 21s | |
| 21m 58s | |
| 22m 3s | |
| 25m 37s | |
| 22m 33s | |
| 29m 5s | |
| 27m 48s | |
| 28m 18s | |
| 23m 45s | |
| 4h 46m 29s |