chore(deps): bump acorn from 7.1.1 to 7.2.0 (#198)

Bumps [acorn](https://github.com/acornjs/acorn) from 7.1.1 to 7.2.0.
- [Release notes](https://github.com/acornjs/acorn/releases)
- [Commits](acornjs/acorn@7.1.1...7.2.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>