make homing current config customizableconfigelement

Author: caila-marashaj

shared-data/python/opentrons_shared_data/pipette/dev_types.py

@@ -155,7 +155,7 @@ class PipetteModelSpec(TypedDict, total=False):
     pickUpPresses: PipetteCustomizableConfigElementInt
     pickUpSpeed: PipetteCustomizableConfigElementFloat
     plungerCurrent: PipetteCustomizableConfigElementFloat
-    plungerHomingCurrent: float
+    plungerHomingCurrent: PipetteCustomizableConfigElementFloat
     dropTipCurrent: PipetteCustomizableConfigElementFloat
     dropTipSpeed: PipetteCustomizableConfigElementFloat
     modelOffset: List[float]

shared-data/python/opentrons_shared_data/pipette/scripts/build_json_script.py

@@ -97,7 +97,7 @@ def _build_motor_configurations(
     if model_configurations:
         run = model_configurations["plungerCurrent"]["value"]
         idle = model_configurations.get("idleCurrent", run)
-        homing = model_configurations.get("plungerHomingCurrent", run)
+        homing = model_configurations["plungerHomingCurrent"]["value"]
     else:
         print("Handling default plunger motor currents\n")
         idle = float(