submodule: bump third_party/openthread/repo from 499f668 to `70adca…
#4108
| Job | Run time |
|---|---|
| 5m 47s | |
| 5m 47s |
499f668 to `70adca…
#4108
| Job | Run time |
|---|---|
| 5m 47s | |
| 5m 47s |