Fix 'sync_plan_position' call (#19016)

Marlin/src/module/stepper/indirection.h

 #define  ENABLE_AXIS_Z() do{ ENABLE_STEPPER_Z();  ENABLE_STEPPER_Z2();  ENABLE_STEPPER_Z3();  ENABLE_STEPPER_Z4(); }while(0)
 
 #ifdef Z_AFTER_DEACTIVATE
-  #define Z_RESET() do{ current_position.z = Z_AFTER_DEACTIVATE; planner.sync_plan_position(); }while(0)
+  #define Z_RESET() do{ current_position.z = Z_AFTER_DEACTIVATE; sync_plan_position(); }while(0)
 #else
   #define Z_RESET()
 #endif