fix(langchain): Set agent name as gen_ai.agent.name for chat and tool spans
#7709
| Job | Run time |
|---|---|
| 4m 40s | |
| 4m 49s | |
| 3m 4s | |
| 4m 6s | |
| 4m 43s | |
| 3m 52s | |
| 4m 48s | |
| 4m 50s | |
| 4m 49s | |
| 4m 50s | |
| 4s | |
| 44m 35s |