chore(package): update @hint/hint-highest-available-document-mode to version 4.0.0

Closes #1234

Author: greenkeeper[bot]

package.json

@@ -49,7 +49,7 @@
   "devDependencies": {
     "@hint/formatter-codeframe": "^2.0.0",
     "@hint/hint-disown-opener": "^2.1.0",
-    "@hint/hint-highest-available-document-mode": "^2.1.0",
+    "@hint/hint-highest-available-document-mode": "^4.0.0",
     "@hint/hint-html-checker": "^2.1.0",
     "@hint/hint-http-cache": "^2.1.0",
     "@hint/hint-http-compression": "^3.1.0",