Replace url dependency with modern URL API?

[MuTsunTsai]

@pixi/utils has a dependency on url. As far as I can tell, it is essentially used in only one place:
https://github.com/pixijs/pixijs/blob/dev/packages/utils/src/network/determineCrossOrigin.ts
and apparently this file hasn't been touched for years (there's even a comment about IE9 which should be long dropped by Pixi). I believe that the url dependency and the tempAnchor stuff can all be replaced by simply

const parsedUrl = new URL(url, document.baseURI);

This works in all supposedly targeted browsers, and can save us a few dependencies to bundle and the annoying "querystring deprecated" warning.

The only thing I hesitate about making a PR is that @pixi/utils actually exports url (in https://github.com/pixijs/pixijs/blob/dev/packages/utils/src/index.ts), and I'm not entirely sure if it is used elsewhere in the ecosystem. What do you guys think?

[SuperSodaSea]

I think it would be great to replace package url with native URL. For compatibility, we can mark url as deprecated and completely remove it completely later in PixiJS v8. Feel free to make a PR!

packages/utils/src/index.ts

  /**
   * Node.js compatible URL utilities.
   * @see https://www.npmjs.com/package/url
   * @memberof PIXI.utils
   * @name url
   * @member {object}
+  * @deprecated since 7.3.0
   */
  export * from './url';

packages/utils/src/url.ts

export const url = {
    /**
     * @deprecated since 7.3.0
     */
    parse: {
        get()
        {
            // #if _DEBUG
            deprecation('7.3.0', 'utils.url.parse is deprecated, use native URL API instead');
            // #endif

            return _parse as ParseFunction;
        },
    },
    // And format & resolve
};

[MuTsunTsai]

Alright then, PR made.