fix: support node: protocol when building Playground

[mdjermanovic]

Prerequisites checklist

• I have read the contributing guidelines.

What is the purpose of this pull request?

Updates webpack config to support node: protocol (e.g., require("node:path")).

This change is necessary in order to build the Playground from the upcoming ESLint v9.3.0 because it will use the node: protocol.

What changes did you make? (Give an overview)

Updated webpack config like in eslint/eslint#18434, as recommended in webpack/webpack#13290.

Related Issues

eslint/eslint#18434

Is there anything you'd like reviewers to focus on?

Check that the playground is working properly in the deploy preview.

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[mdjermanovic]

This is to test Playground with an ESLint version that uses the node: protocol. When it's verified that the Playground works well, I'll revert this change.

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[nzakas]

@mdjermanovic this is marked as a draft. Is it ready for review?

[mdjermanovic]

Yes, it's ready for review and for testing the Playground in the deploy preview.

I just marked it as a draft because the package.json change needs to be reverted before merging.

[nzakas]

LGTM. Tested it out in the deploy preview and everything appears to work correctly.