Bump htmlhint from 1.8.1 to 1.9.1 in /Build

Bumps [htmlhint](https://github.com/htmlhint/HTMLHint) from 1.8.1 to 1.9.1.
- [Release notes](https://github.com/htmlhint/HTMLHint/releases)
- [Commits](htmlhint/HTMLHint@v1.8.1...v1.9.1)

---
updated-dependencies:
- dependency-name: htmlhint
  dependency-version: 1.9.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Build/package-lock.json

@@ -43,7 +43,7 @@
     "@types/prettier": "^3.0.0",
     "@types/split.js": "^1.6.0",
     "copy-webpack-plugin": "^13.0.1",
-    "htmlhint": "^1.8.1",
+    "htmlhint": "^1.9.1",
     "ts-loader": "^9.5.4",
     "typescript": "^5.9.3",
     "webpack": "^5.105.2",