skin_outline_count default_value changed to value

Since the top container defines a default_value and a value
Part of CURA-6684

resources/definitions/skriware_2.def.json

@@ -447,7 +447,7 @@
             "value": "5"
         },
         "skin_outline_count": {
-            "default_value": 0
+            "value": 0
         },
         "skirt_brim_speed": {
             "value": "10.0"