grandpa: Ensure WarpProof stays in its limits
#12578
| Job | Run time |
|---|---|
| 40s | |
| 1m 13s | |
| 11m 13s | |
| 1m 4s | |
| 12m 4s | |
| 16m 25s | |
| 14m 53s | |
| 10m 25s | |
| 10m 13s | |
| 9m 3s | |
| 9m 2s | |
| 10m 27s | |
| 8m 49s | |
| 10m 18s | |
| 10m 20s | |
| 11m 43s | |
| 9m 47s | |
| 8m 54s | |
| 1s | |
| 2h 46m 34s |