gh-142651: use NonCallableMock._lock for thread safety of call_count
#226546
| Job | Run time |
|---|---|
| 6s | |
| 5s | |
| 11s |
NonCallableMock._lock for thread safety of call_count
#226546
| Job | Run time |
|---|---|
| 6s | |
| 5s | |
| 11s |