fix: Add user filed to get problem set grades API
#189
| Job | Run time |
|---|---|
| 1m 3s | |
| 1m 16s | |
| 1m 9s | |
| 1m 5s | |
| 1m 19s | |
| 1m 2s | |
| 1m 3s | |
| 1m 20s | |
| 59s | |
| 1m 3s | |
| 1m 5s | |
| 1m 2s | |
| 1m 12s | |
| 1s | |
| 1m 3s | |
| 15m 42s |