Fix two harmless warnings (#587)

Author: keskitalo

src/toast/ops/sim_tod_atm.py

@@ -320,7 +320,7 @@ def _exec(self, data, detectors=None, **kwargs):
         observe_atm = ObserveAtmosphere(
             times=self.times,
             det_data=self.det_data,
-            quats=self.detector_pointing.quats,
+            quats_azel=self.detector_pointing.quats,
             view=temporary_view,
             shared_flags=shared_flags,
             shared_flag_mask=shared_flag_mask,

src/toast/templates/offset.py

@@ -207,7 +207,7 @@ def _initialize(self, new_data):
         # based on the noise weight of the detector and the number of flagged samples.
 
         # Boolean flags
-        self._amp_flags = np.zeros(self._n_local, dtype=np.bool)
+        self._amp_flags = np.zeros(self._n_local, dtype=bool)
 
         # Here we track the variance of the offsets based on the detector noise weights
         # and the number of unflagged / good samples per offset.