fix: use fileEvent instead of event when appending fields for file logger

Co-authored-by: argobell <183611258+argobell@users.noreply.github.com>

pkg/logger/logger.go

@@ -209,7 +209,7 @@ func logMessage(level LogLevel, component string, message string, fields map[str
 			fileEvent.Str("component", component)
 		}
 
-		appendFields(event, fields)
+		appendFields(fileEvent, fields)
 		fileEvent.Msg(message)
 	}