docs: update example in math/iter/special/sinpi to use iter/uniform
#31602
| Job | Run time |
|---|---|
| 1m 23s | |
| 1m 23s |
math/iter/special/sinpi to use iter/uniform
#31602
| Job | Run time |
|---|---|
| 1m 23s | |
| 1m 23s |