Improve JSON validation in start-proxy action
#7105
| Job | Run time |
|---|---|
| 9m 48s | |
| 16m 54s | |
| 17m 25s | |
| 4m 12s | |
| 14m 10s | |
| 4m 2s | |
| 9m 56s | |
| 8m 42s | |
| 4m 22s | |
| 11m 3s | |
| 9m 4s | |
| 4m 28s | |
| 4m 11s | |
| 3m 52s | |
| 4m 39s | |
| 3m 59s | |
| 2h 10m 47s |