cmake: do not store MINGW64_VERSION in cache
#3914
| Job | Run time |
|---|---|
| 4m 28s | |
| 3m 5s | |
| 4m 23s | |
| 16m 40s | |
| 2m 32s | |
| 2m 37s | |
| 11m 50s | |
| 16m 41s | |
| 2m 19s | |
| 1m 42s | |
| 1m 58s | |
| 53s | |
| 2m 21s | |
| 1m 47s | |
| 2m 45s | |
| 1m 58s | |
| 4m 39s | |
| 18m 7s | |
| 4m 43s | |
| 4m 52s | |
| 14m 15s | |
| 2m 18s | |
| 39s | |
| 2m 38s | |
| 2m 24s | |
| 6m 11s | |
| 4m 22s | |
| 2m 50s | |
| 3m 2s | |
| 5m 35s | |
| 10m 17s | |
| 5m 35s | |
| 5m 31s | |
| 2m 38s | |
| 2m 27s | |
| 3m 32s | |
| 15m 19s | |
| 1m 46s | |
| 3m 50s | |
| 3m 27s | |
| 2m 21s | |
| 3h 31m 17s |