update phonopy api

Author: esoteric-ephemera

src/atomate2/common/jobs/phonons.py

@@ -161,10 +161,10 @@ def generate_phonon_displacements(
         cell,
         supercell_matrix,
         primitive_matrix=primitive_matrix,
-        factor=factor,
         symprec=symprec,
         is_symmetry=sym_reduce,
     )
+    phonon.unit_conversion_factor = factor
     phonon.generate_displacements(distance=displacement)
 
     supercells = phonon.supercells_with_displacements

src/atomate2/common/schemas/phonons.py

@@ -308,10 +308,10 @@ def from_forces_born(
             cell,
             supercell_matrix,
             primitive_matrix=primitive_matrix,
-            factor=factor,
             symprec=symprec,
             is_symmetry=sym_reduce,
         )
+        phonon.unit_conversion_factor = factor
         phonon.generate_displacements(distance=displacement)
         set_of_forces = [np.array(forces) for forces in displacement_data["forces"]]