bench: refactor to use string interpolation in array/base/assert/is-complex64array
#30919
| Job | Run time |
|---|---|
| 1m 32s | |
| 1m 32s |
array/base/assert/is-complex64array
#30919
| Job | Run time |
|---|---|
| 1m 32s | |
| 1m 32s |