build(deps-dev): Bump html-validate from 8.7.2 to 8.7.3 (#1021)

Bumps [html-validate](https://gitlab.com/html-validate/html-validate) from 8.7.2 to 8.7.3.
- [Release notes](https://gitlab.com/html-validate/html-validate/tags)
- [Commits](https://gitlab.com/html-validate/html-validate/compare/v8.7.2...v8.7.3)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -40,7 +40,7 @@
     "grunt-contrib-uglify": "^5.2.2",
     "grunt-contrib-watch": "^1.1.0",
     "grunt-eslint": "^24.3.0",
-    "html-validate": "^8.7.2",
+    "html-validate": "^8.7.3",
     "https-proxy-agent": "^7.0.2",
     "isbinaryfile": "^5.0.0"
   }