In Webpack 5, the [recommended way](https://webpack.js.org/guides/web-workers/) to create a web worker is

```ts
new Worker(new URL('./worker.js', import.meta.url));
```

Could we update\* the [`pdfjs-dist/webpack` entrypoint](https://github.com/mozilla/pdfjs-dist/blob/master/webpack.js) to use this syntax instead of the legacy `worker-loader`? One of the Webpack contributors told me that `worker-loader` uses "magic" and can cause issues.

\* To maintain compatibility with people still using Webpack 4, we should probably introduce a new entrypoint called `pdfjs-dist/webpack5` (or something like that) rather than changing the existing entrypoint.

Can attempt a PR if you would like.

Closely-related: https://github.com/mozilla/pdf.js/issues/15302


ghPagesPrepare,
    "wintersmith",
    ghPagesGit
  )
);
function packageJson() {
  const VERSION = getVersionJSON().version;
  const DIST_NAME = "pdfjs-dist";
  const DIST_DESCRIPTION = "Generic build of Mozilla's PDF.js library.";
  const DIST_KEYWORDS = ["Mozilla", "pdf", "pdf.js"];
  const DIST_HOMEPAGE = "http://mozilla.github.io/pdf.js/";
  const DIST_BUGS_URL = "https://github.com/mozilla/pdf.js/issues";
  const DIST_LICENSE = "Apache-2.0";
  const npmManifest = {
    name: DIST_NAME,
    version: VERSION,
    main: "build/pdf.js",
    types: "types/src/pdf.d.ts",
    description: DIST_DESCRIPTION,
    keywords: DIST_KEYWORDS,
    homepage: DIST_HOMEPAGE,
    bugs: DIST_BUGS_URL,
    license: DIST_LICENSE,
    dependencies: {
      dommatrix: "^1.0.3",
      "web-streams-polyfill": "^3.2.1",
    },
    peerDependencies: {
      "worker-loader": "^3.0.8", 
    },