chore(deps): bump dompurify in /examples/next13-simple

Bumps [dompurify](https://github.com/cure53/DOMPurify) from 3.1.0 to 3.1.6.
- [Release notes](https://github.com/cure53/DOMPurify/releases)
- [Commits](cure53/DOMPurify@3.1.0...3.1.6)

---
updated-dependencies:
- dependency-name: dompurify
  dependency-type: indirect
...

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