Add storage bounds for pallet staking and clean up deprecated non paged exposure storages
#11587
| Job | Run time |
|---|---|
| 29s | |
| 43s | |
| 1m 3s | |
| 27m 44s | |
| 10m 37s | |
| 0s | |
| 1s | |
| 40m 37s |