Fix Specification doctests

Author: PProfizi

src/ansys/dpf/core/operator_specification.py

@@ -386,7 +386,7 @@ def inputs(self) -> dict[int, PinSpecification]:
         True
         >>> operator.specification.inputs[4]
         PinSpecification(name='data_sources', _type_names=['data_sources'], ...set', ellipsis=False,
-         name_derived_class='')
+         name_derived_class='', aliases=[...])
         """
         if self._map_input_pin_spec is None:
             self._map_input_pin_spec = {}
@@ -407,7 +407,7 @@ def outputs(self) -> dict[int, PinSpecification]:
         >>> operator = dpf.operators.mesh.mesh_provider()
         >>> operator.specification.outputs
         {0: PinSpecification(name='mesh', _type_names=['abstract_meshed_region'], ...=False,
-         name_derived_class='')}
+         name_derived_class='', aliases=[...])}
         """
         if self._map_output_pin_spec is None:
             self._map_output_pin_spec = {}