[Feature]: webpackIgnore magic comment is not working for new URL calls

[leonardlib]

System Info

System:

OS: macOS 15.3.2
CPU: (8) arm64 Apple M1
Memory: 100.50 MB / 16.00 GB
Shell: 5.9 - /bin/zsh

Binaries:

Node: 22.13.1 - ~/.nvm/versions/node/v22.13.1/bin/node
Yarn: 1.22.22 - ~/.nvm/versions/node/v22.13.1/bin/yarn
npm: 10.9.2 - ~/.nvm/versions/node/v22.13.1/bin/npm

Browsers:

Chrome: 136.0.7103.114
Edge: 136.0.3240.76
Safari: 18.3.1

npmPackages:

@rspack/cli: ^1.3.11 => 1.3.11
@rspack/core: ^1.3.11 => 1.3.11
@rspack/dev-server: ^1.1.2 => 1.1.2
@rspack/plugin-minify: ^0.7.5 => 0.7.5
@rspack/plugin-react-refresh: ^1.4.3 => 1.4.3

Details

I'm using an external package that has a Worker that should not be bundled within my application, so the implementation looks like this:

pdfjs.GlobalWorkerOptions.workerSrc = new URL(
  /* webpackIgnore: true */ 'pdfjs-dist/legacy/build/pdf.worker.min.js',
  import.meta.url,
).toString();

When I bundle my application with Webpack, it works well, externalizing the Worker:

But when I use Rspack, the Worker is bundled (which is incorrect):

So it seems that the /* webpackIgnore: true */ comment is not working well

Reproduce link

No response

Reproduce Steps

npx nx run my-app:build