Use specific logger

This helps with debugging ingest failures since the ingest logs
will not be captured by the assertLogs

tests/test_ingest.py

@@ -137,7 +137,7 @@ def testSimpleIngest(self):
         # Now ingest dataset_3, which should generate a warning because of
         # the end time being before the begin time.
         files = [os.path.join(INGESTDIR, "sidecar_data", "dataset_3.yaml")]
-        with self.assertLogs("lsst.obs.base", level="WARNING") as cm:
+        with self.assertLogs("lsst.obs.base._instrument", level="WARNING") as cm:
             self.task.run(files, run=self.outputRun)
 
         self.assertIn("has end time before begin time", cm.output[0])