chore: use IterateLastValidatorPowers instead of GetLastValidators (backport #1953)
#2011
| Job | Run time |
|---|---|
| 2m 13s | |
| 14m 50s | |
| 13m 4s | |
| 19s | |
| 2m 39s | |
| 3m 24s | |
| 14m 46s | |
| 0s | |
| 51m 15s |