balancergroup: add a ParseConfig API and remove the UpdateBuilder API
#10377
| Job | Run time |
|---|---|
| 34s | |
| 2m 23s | |
| 2m 44s | |
| 4m 8s | |
| 5m 36s | |
| 4m 51s | |
| 6m 13s | |
| 4m 3s | |
| 4m 11s | |
| 34m 43s |