test: add kokoro configs to enable integration tests (prod, staging, devel) against directpath. #7069
| Job | Run time |
|---|---|
| 1m 52s | |
| 1m 46s | |
| 2m 36s | |
| 1m 30s | |
| 2m 35s | |
| 8m 0s | |
| 4m 43s | |
| 3m 41s | |
| 26m 43s |
| Job | Run time |
|---|---|
| 1m 52s | |
| 1m 46s | |
| 2m 36s | |
| 1m 30s | |
| 2m 35s | |
| 8m 0s | |
| 4m 43s | |
| 3m 41s | |
| 26m 43s |