http: fix keep-alive socket reuse race in requestOnFinish
#46606
| Job | Run time |
|---|---|
| 1h 18m 40s | |
| 1h 18m 40s |
requestOnFinish
#46606
| Job | Run time |
|---|---|
| 1h 18m 40s | |
| 1h 18m 40s |