chore(deps): bump isomorphic-dompurify from 2.16.0 to 2.21.0

Bumps [isomorphic-dompurify](https://github.com/kkomelin/isomorphic-dompurify) from 2.16.0 to 2.21.0.
- [Release notes](https://github.com/kkomelin/isomorphic-dompurify/releases)
- [Commits](kkomelin/isomorphic-dompurify@v2.16.0...2.21.0)

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

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Author: dependabot[bot]