chore(dependabot-dev): bump @contentful/rich-text-html-renderer

Bumps [@contentful/rich-text-html-renderer](https://github.com/contentful/rich-text) from 16.6.8 to 16.6.9.
- [Release notes](https://github.com/contentful/rich-text/releases)
- [Changelog](https://github.com/contentful/rich-text/blob/master/CHANGELOG.md)
- [Commits](https://github.com/contentful/rich-text/compare/@contentful/rich-text-html-renderer@16.6.8...@contentful/rich-text-html-renderer@16.6.9)

---
updated-dependencies:
- dependency-name: "@contentful/rich-text-html-renderer"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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