logging: Ensure slog error level logs don't print stack traces (#7512)
#6703
| Job | Run time |
|---|---|
| 1m 21s | |
| 1m 17s | |
| 40s | |
| 1m 19s | |
| 1m 16s | |
| 1m 22s | |
| 1m 22s | |
| 1m 17s | |
| 1m 15s | |
| 1m 19s | |
| 12m 28s |