bench: use string interpolation in stats/base/ndarray/dcovarmtk
#31919
| Job | Run time |
|---|---|
| 1m 38s | |
| 1m 38s |
stats/base/ndarray/dcovarmtk
#31919
| Job | Run time |
|---|---|
| 1m 38s | |
| 1m 38s |