Try to fix atomate tests due to bad use of numpy.A1.

Author: shyuep

atomate/vasp/firetasks/parse_outputs.py

@@ -828,7 +828,7 @@ def run_task(self, fw_spec):
 
         polarization = Polarization(p_elecs, p_ions, structures)
 
-        p_change = polarization.get_polarization_change().A1.tolist()
+        p_change = np.ravel(polarization.get_polarization_change()).tolist()
         p_norm = polarization.get_polarization_change_norm()
         polarization_max_spline_jumps = polarization.max_spline_jumps()
         same_branch = polarization.get_same_branch_polarization_data(convert_to_muC_per_cm2=True)