Update webgpu_postprocessing_godrays.html

Update light color to make WebGL demo.

examples/webgpu_postprocessing_godrays.html

@@ -89,7 +89,7 @@
 
 				scene.add( new THREE.AmbientLight( 0xcccccc, 0.4 ) );
 
-				const pointLight = new THREE.PointLight( 0xffffff, 10000 );
+				const pointLight = new THREE.PointLight( 0xf6287d, 10000 );
 				pointLight.castShadow = true;
 				pointLight.shadow.bias = - 0.00001;
 				pointLight.shadow.mapSize.width = 2048;