fix: typo in example pause macro

resources/kiauh_macros.cfg

@@ -30,7 +30,7 @@ gcode:
     {% set y_park = printer.toolhead.axis_maximum.y|float - 5.0 %}
     ##### calculate save lift position #####
     {% set max_z = printer.toolhead.axis_maximum.z|float %}
-    {% set act_z = printer.toolhead.position.x|float %}
+    {% set act_z = printer.toolhead.position.z|float %}
     {% if act_z < (max_z - 2.0) %}
         {% set z_safe = 2.0 %}
     {% else %}