Bump third_party/openthread/repo from 66eaeec to b78b71b
#1139
| Job | Run time |
|---|---|
| 49m 30s | |
| 49m 30s |
66eaeec to b78b71b
#1139
| Job | Run time |
|---|---|
| 49m 30s | |
| 49m 30s |