chore: fix JavaScript lint errors (issue #11247)

[mvanhorn]

Resolves #11247.

Description

What is the purpose of this pull request?

This pull request:

• Replaces the incorrect `// returns [{...}]` doctest annotation with `// throws ` in the `@example` block of `_tools/pkgs/entry-points/lib/sync.js`. The example passes `/foo/bar/baz` (a non-existent path) to `entryPoints()`, which causes the function to throw synchronously while resolving the package path, so the `// returns [{...}]` annotation fails the `stdlib/jsdoc-doctest` check. The linter itself suggested the `// throws ` annotation in the failure message captured in the issue.

Related Issues

Does this pull request have any related issues?

This pull request has the following related issues:

• Fix JavaScript lint errors #11247

Questions

Any questions for reviewers of this pull request?

No.

Other

Any other information relevant to this pull request? This may include screenshots, references, and/or implementation notes.

The companion `async.js` in the same directory uses a similarly non-existent path (`./some/nonexistent/path`) but has no `// returns` / `// throws` annotation because results are delivered via callback, so doctest does not flag that variant and no change is needed there.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

AI Assistance

When authoring the changes proposed in this PR, did you use any kind of AI assistance?

• Yes
• No

If you answered "yes" above, how did you use AI assistance?

• Code generation (e.g., when writing an implementation or fixing a bug)
• Test/benchmark generation
• Documentation (including examples)
• Research and understanding

Disclosure

This PR was authored with Claude Code. I reviewed the `stdlib/jsdoc-doctest` failure in the issue, confirmed the behavior manually (non-existent path causes `entryPoints()` to throw), and the model's suggested swap matches the linter's own hint.

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@stdlib-js/reviewers