Bump dompurify in /themes/common-theme/webapp/common-theme/js (#791)

Bumps [dompurify](https://github.com/cure53/DOMPurify) from 3.1.1 to 3.1.2.
- [Release notes](https://github.com/cure53/DOMPurify/releases)
- [Commits](https://github.com/cure53/DOMPurify/compare/3.1.1...3.1.2)

---
updated-dependencies:
- dependency-name: dompurify
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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2 files changed