fix(metrics,logs): Don't attach span_id if no active span
#8357
| Job | Run time |
|---|---|
| 3m 4s | |
| 2m 32s | |
| 4m 4s | |
| 2m 5s | |
| 2m 31s | |
| 2m 41s | |
| 2m 19s | |
| 4m 34s | |
| 2m 12s | |
| 2m 22s | |
| 2s | |
| 28m 26s |
span_id if no active span
#8357
| Job | Run time |
|---|---|
| 3m 4s | |
| 2m 32s | |
| 4m 4s | |
| 2m 5s | |
| 2m 31s | |
| 2m 41s | |
| 2m 19s | |
| 4m 34s | |
| 2m 12s | |
| 2m 22s | |
| 2s | |
| 28m 26s |