Ergosaurus Configurator support bugfix (#8104)

Corrected the layout macro name in `info.json`.

keyboards/ergosaurus/info.json

@@ -4,7 +4,7 @@
     "width": 19.75,
     "height": 5.25,
     "layouts": {
-        "LAYOUT_default": {
+        "LAYOUT": {
             "layout": [
                 {"label":"`", "x":0.5, "y":0},
                 {"label":"Esc", "x":1.75, "y":0.25},