Fixed critical curve tests so they now use irregular grid class

Author: Jammy2211

autoarray/structures/grids.py

@@ -599,6 +599,20 @@ def __array_finalize__(self, obj):
         if hasattr(obj, "interpolator"):
             self.interpolator = obj.interpolator
 
+    @property
+    def mask(self):
+
+        class IrregularMask(object):
+
+            def __init__(self, sub_shape_1d):
+
+                self.sub_shape_1d = sub_shape_1d
+
+            def grid_from_sub_grid_1d(self, sub_grid_1d):
+                return IrregularGrid(grid=sub_grid_1d)
+
+        return IrregularMask(sub_shape_1d=self.shape[0])
+
     @property
     def mapping(self):