test(openai-agents): Replace mocks with httpx in non-error single-response tests
#6880
| Job | Run time |
|---|---|
| 6m 5s | |
| 3m 17s | |
| 4m 44s | |
| 4m 59s | |
| 5m 38s | |
| 5m 55s | |
| 6m 26s | |
| 3m 13s | |
| 4m 52s | |
| 3m 12s | |
| 3s | |
| 48m 24s |