http: fix keep-alive socket reuse race in requestOnFinish
#30934
| Job | Run time |
|---|---|
| 1h 51m 0s | |
| 1h 51m 0s |
requestOnFinish
#30934
| Job | Run time |
|---|---|
| 1h 51m 0s | |
| 1h 51m 0s |