codeintel: dont emit error metric when inference limit hit
Created by: Strum355
Previously, we would emit an error metric if we didn't infer anything because of hitting file count or file size limits. This caused unnecessary noise in the error rate panel attributable to a reasonable reason to "soft-fail".
This PR makes us ignore limit errors for metrics, but continue emitting them for logs etc
Test plan
Only affects monitoring output, essentially an if statement