Bump sanitize-html from 2.7.2 to 2.7.3 (#957)

Bump sanitize-html from 2.7.2 to 2.7.3 (#957)

Bumps [sanitize-html](https://github.com/apostrophecms/sanitize-html) from 2.7.2 to 2.7.3.
- [Release notes](https://github.com/apostrophecms/sanitize-html/releases)
- [Changelog](https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md)
- [Commits](https://github.com/apostrophecms/sanitize-html/compare/2.7.2...2.7.3)

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

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