Bump gl-heatmap2d

Author: dy

package.json

@@ -72,7 +72,7 @@
     "font-atlas-sdf": "^1.3.3",
     "gl-contour2d": "^1.1.4",
     "gl-error3d": "^1.0.7",
-    "gl-heatmap2d": "^1.0.3",
+    "gl-heatmap2d": "^1.0.4",
     "gl-line3d": "^1.1.1",
     "gl-mat4": "^1.1.2",
     "gl-mesh3d": "^1.3.1",