Fix Renderer._bounds clone bug

[cptbtptpbcptdtptp]

import { WebGLEngine, MeshRenderer } from "@galacean/engine";

WebGLEngine.create({ canvas: "canvas" }).then((engine) => {
  engine.canvas.resizeByClientSize();
  const entity = engine.sceneManager.activeScene.createRootEntity("renderer");
  const renderer = entity.addComponent(MeshRenderer);
  console.log(
    "compare",
    entity.clone().getComponent(MeshRenderer)?.bounds.min ===
      renderer.bounds.min
  );
});