build(deps-dev): bump @sveltejs/package from 2.2.7 to 2.3.1 (#90)

Bumps [@sveltejs/package](https://github.com/sveltejs/kit/tree/HEAD/packages/package) from 2.2.7 to 2.3.1.
- [Release notes](https://github.com/sveltejs/kit/releases)
- [Changelog](https://github.com/sveltejs/kit/blob/main/packages/package/CHANGELOG.md)
- [Commits](https://github.com/sveltejs/kit/commits/@sveltejs/package@2.3.1/packages/package)

---
updated-dependencies:
- dependency-name: "@sveltejs/package"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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