fix test

Author: Matt Sokoloff

labelbox/data/annotation_types/geometry/point.py

@@ -37,4 +37,4 @@ def raster(self,
         return cv2.circle(canvas, (int(self.x), int(self.y)),
                           radius=thickness,
                           color=color,
-                          thickness=1)
+                          thickness=-1)