[otlp] Change serialization of null protobuf values #7171
| Job | Run time |
|---|---|
| 11s | |
| 7s | |
| 4s | |
| 2m 48s | |
| 0s | |
| 2m 5s | |
| 1m 1s | |
| 1m 4s | |
| 6m 42s | |
| 5m 51s | |
| 5m 50s | |
| 3m 12s | |
| 3m 37s | |
| 3m 24s | |
| 8m 53s | |
| 9m 9s | |
| 9m 18s | |
| 9m 37s | |
| 8m 43s | |
| 5m 22s | |
| 9m 7s | |
| 2m 51s | |
| 5m 5s | |
| 5m 12s | |
| 3m 30s | |
| 5m 15s | |
| 5m 36s | |
| 3m 36s | |
| 5m 33s | |
| 2m 22s | |
| 2m 19s | |
| 4m 39s | |
| 2m 25s | |
| 4m 21s | |
| 2m 59s | |
| 2m 10s | |
| 2m 51s | |
| 1m 55s | |
| 1m 19s | |
| 1m 4s | |
| 2m 39s | |
| 1m 33s | |
| 1m 28s | |
| 3m 6s | |
| 2m 41s | |
| 1s | |
| 2h 52m 35s |