v3.1.3: [Security] Bump acorn from 6.4.0 to 6.4.1 (#19)
* [Security] Bump acorn from 6.4.0 to 6.4.1
Bumps [acorn](https://github.com/acornjs/acorn) from 6.4.0 to 6.4.1. **This update includes a security fix.**
- [Release notes](https://github.com/acornjs/acorn/releases)
- [Commits](https://github.com/acornjs/acorn/compare/6.4.0...6.4.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
* update libraries
Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
Co-authored-by: Phillip Manwaring <phillip.manwaring@gmail.com>