gh-142651: use NonCallableMock._lock for thread safety of call_count
#177479
| Job | Run time |
|---|---|
| 12s | |
| 4m 55s | |
| 26s | |
| 3m 4s | |
| 4m 11s | |
| 9m 11s | |
| 17m 50s | |
| 4m 28s | |
| 12m 2s | |
| 20m 49s | |
| 3m 4s | |
| 3m 20s | |
| 3m 9s | |
| 3m 43s | |
| 3m 4s | |
| 3m 21s | |
| 18m 6s | |
| 25m 8s | |
| 10m 16s | |
| 3m 6s | |
| 24m 28s | |
| 20m 58s | |
| 19m 13s | |
| 14m 16s | |
| 12m 30s | |
| 11m 38s | |
| 8m 46s | |
| 16m 10s | |
| 17m 4s | |
| 16m 28s | |
| 11m 27s | |
| 0s | |
| 21m 26s | |
| 12m 27s | |
| -1s | |
| -1s | |
| 2s | |
| 6h 0m 16s |