feat: ESLint 10 support

[mdjastrzebski]

Summary

Fix ESLint 10 compatibility for JS/JSX flat config consumers by preserving the original @babel/eslint-parser export shape in babel-eslint-parser.compat.js.

This keeps the parser meta field available, which ESLint 10 uses when serializing config objects.

What changed

• preserve the original Babel parser export and override only parseForESLint
• keep the addGlobals compatibility patch used by eslint-plugin-flowtype
• extend the ESLint 10 test workspace to also run --print-config as a regression check

Why

Normal linting was already passing, but config serialization flows for JS/JSX files could still fail under ESLint 10 because the compat wrapper dropped parser metadata.

That affected tooling and debugging flows such as:

• eslint --print-config
• config inspection
• direct calculateConfigForFile() serialization

Testing

• yarn test
• verified ESLint v8, v9, and v10 test workspaces pass
• verified the ESLint 10 lane now succeeds for both linting and --print-config