fix(api): Maintain existing nozzle manager for reloaded virtual pipet…

…tes (#16231)

Covers RQA-3160
Ensures that we use any existing nozzle manager whenever a
virtual pipette is loaded/built.

api/src/opentrons/protocol_engine/resources/pipette_data_provider.py

@@ -193,9 +193,12 @@ def _get_virtual_pipette_static_config_by_model(  # noqa: C901
             pipette_model.pipette_channels,
             pipette_model.pipette_version,
         )
-        nozzle_manager = NozzleConfigurationManager.build_from_config(
-            config, valid_nozzle_maps
-        )
+        if pipette_id not in self._nozzle_manager_layout_by_id:
+            nozzle_manager = NozzleConfigurationManager.build_from_config(
+                config, valid_nozzle_maps
+            )
+        else:
+            nozzle_manager = self._nozzle_manager_layout_by_id[pipette_id]
 
         tip_overlap_dict_for_tip_type = None
         for configuration in (