submodule: bump third_party/openthread/repo from 5fc0e77 to b19b2cf
#4075
| Job | Run time |
|---|---|
| 3m 6s | |
| 3m 6s |
5fc0e77 to b19b2cf
#4075
| Job | Run time |
|---|---|
| 3m 6s | |
| 3m 6s |