Bump html-validate from 7.18.1 to 8.4.0

Bumps [html-validate](https://gitlab.com/html-validate/html-validate) from 7.18.1 to 8.4.0.
- [Release notes](https://gitlab.com/html-validate/html-validate/tags)
- [Changelog](https://gitlab.com/html-validate/html-validate/blob/master/CHANGELOG.md)
- [Commits](https://gitlab.com/html-validate/html-validate/compare/v7.18.1...v8.4.0)

---
updated-dependencies:
- dependency-name: html-validate
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -46,7 +46,7 @@
         "eslint-plugin-jsonc": "^2.8.0",
         "eslint-plugin-no-unsanitized": "^4.0.1",
         "fake-indexeddb": "^4.0.0",
-        "html-validate": "^7.6.0",
+        "html-validate": "^8.4.0",
         "jsdom": "^22.1.0",
         "parse5": "^7.1.2",
         "stylelint": "^15.10.3",