build(deps): bump acorn from 8.8.2 to 8.9.0

Bumps [acorn](https://github.com/acornjs/acorn) from 8.8.2 to 8.9.0.
- [Commits](acornjs/acorn@8.8.2...8.9.0)

---
updated-dependencies:
- dependency-name: acorn
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]