Bump the acorn group with 2 updates

Bumps the acorn group with 2 updates: [acorn](https://github.com/acornjs/acorn) and [acorn-walk](https://github.com/acornjs/acorn).


Updates `acorn` from 8.11.3 to 8.12.0
- [Commits](acornjs/acorn@8.11.3...8.12.0)

Updates `acorn-walk` from 8.3.2 to 8.3.3
- [Commits](https://github.com/acornjs/acorn/commits)

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

Signed-off-by: dependabot[bot] <[email protected]>