test(openai-agents): Replace mocks with httpx in non-error single-response tests
#11662
| Job | Run time |
|---|---|
| 3m 42s | |
| 1m 43s | |
| 2m 19s | |
| 3m 24s | |
| 2m 9s | |
| 3m 18s | |
| 2m 2s | |
| 2m 18s | |
| 2m 45s | |
| 4s | |
| 23m 44s |