Docs: Fix import in `CameraUtils`. (#26591)

docs/examples/en/utils/CameraUtils.html

@@ -21,7 +21,7 @@
 		</p>
 
 		<code>
-			import { CameraUtils } from 'three/addons/utils/CameraUtils.js';
+			import * as CameraUtils from 'three/addons/utils/CameraUtils.js';
 		</code>
 
 		<h2>Methods</h2>