submodule: bump third_party/openthread/repo from 4459c54 to `bb5e9b…
#5651
| Job | Run time |
|---|---|
| 4m 15s | |
| 4m 15s |
4459c54 to `bb5e9b…
#5651
| Job | Run time |
|---|---|
| 4m 15s | |
| 4m 15s |