fix(protocol-designer): account for dispensing into trash (#18505)

closes RQA-4240

Author: jerader

protocol-designer/src/load-file/migration/8_5_0.ts

@@ -79,10 +79,16 @@ export const migrateFile = (
         aspirateLabwareUri
       ].parameters.quirks?.includes('touchTipDisabled')
       const dispenseLabwareUri =
-        equipmentLoadInfoFromCommands.labware[dispense_labware].labwareDefURI
-      const isDispenseLabwareTouchtipDisabled = labwareDefinitions[
-        dispenseLabwareUri
-      ].parameters.quirks?.includes('touchTipDisabled')
+        equipmentLoadInfoFromCommands.labware[dispense_labware]?.labwareDefURI
+
+      const isDispenseLabwareTouchtipDisabled =
+        //  dispense is in a waste chute/trash bin
+        labwareDefinitions[dispenseLabwareUri] == null
+          ? true
+          : labwareDefinitions[dispenseLabwareUri].parameters.quirks?.includes(
+              'touchTipDisabled'
+            )
+
       const matchingAspirateLabwareWellDepth = getMigratedPositionFromTop(
         labwareDefinitions,
         loadLabwareCommands,