Add CentralDogmaConfigSource for direct xDS resource fetching from repository
#2658
| Job | Run time |
|---|---|
| 5m 33s | |
| 7m 23s | |
| 6m 13s | |
| 27m 44s | |
| 19m 57s | |
| 21m 14s | |
| 6m 43s | |
| 23m 48s | |
| 11m 2s | |
| 21m 31s | |
| 21m 53s | |
| 21m 46s | |
| 3h 14m 47s |