fixed small mistake

Author: nfarabullini

model/atmosphere/dycore/src/icon4py/model/atmosphere/dycore/stencils/compute_cell_diagnostics_for_dycore.py

@@ -117,6 +117,8 @@ def _compute_perturbed_quantities_and_interpolation(
     ddz_of_temporal_extrapolation_of_perturbed_exner_on_model_levels: fa.CellKField[ta.vpfloat],
     d2dz2_of_temporal_extrapolation_of_perturbed_exner_on_model_levels: fa.CellKField[ta.vpfloat],
     temporal_extrapolation_of_perturbed_exner: fa.CellKField[ta.vpfloat],
+    perturbed_rho_at_cells_on_model_levels: fa.CellKField[ta.wpfloat],
+    perturbed_theta_v_at_cells_on_model_levels: fa.CellKField[ta.wpfloat],
     igradp_method: gtx.int32,
     nflatlev: gtx.int32,
     surface_level: gtx.int32,
@@ -175,8 +177,8 @@ def _compute_perturbed_quantities_and_interpolation(
             reference_theta_at_cells_on_model_levels,
         ),
         (
-            temporal_extrapolation_of_perturbed_exner,
-            perturbed_exner_at_cells_on_model_levels,
+            perturbed_rho_at_cells_on_model_levels,
+            perturbed_theta_v_at_cells_on_model_levels,
         ),
     )
 
@@ -490,6 +492,8 @@ def compute_perturbed_quantities_and_interpolation(
         ddz_of_temporal_extrapolation_of_perturbed_exner_on_model_levels=ddz_of_temporal_extrapolation_of_perturbed_exner_on_model_levels,
         d2dz2_of_temporal_extrapolation_of_perturbed_exner_on_model_levels=d2dz2_of_temporal_extrapolation_of_perturbed_exner_on_model_levels,
         temporal_extrapolation_of_perturbed_exner=temporal_extrapolation_of_perturbed_exner,
+        perturbed_rho_at_cells_on_model_levels=perturbed_rho_at_cells_on_model_levels,
+        perturbed_theta_v_at_cells_on_model_levels=perturbed_theta_v_at_cells_on_model_levels,
         igradp_method=igradp_method,
         nflatlev=nflatlev,
         surface_level=surface_level,