Add MigratableKVStore trait
#16192
| Job | Run time |
|---|---|
| 19m 14s | |
| 8m 11s | |
| 1m 48s | |
| 1h 8m 23s | |
| 7m 44s | |
| 3h 21m 4s | |
| 1h 11m 52s | |
| 18m 44s | |
| 27m 20s | |
| 54s | |
| 1h 45m 31s | |
| 18s | |
| 1h 47m 29s | |
| 51m 1s | |
| 1h 8m 32s | |
| 24m 56s | |
| 13h 3m 1s |