Updated dependencies

package.json

@@ -16,9 +16,9 @@
   "homepage": "https://quasseldroid.info/",
   "devDependencies": {
     "jstransformer-markdown-it": "^2.1.0",
-    "node-sass": "^4.14.0",
+    "node-sass": "^6.0.0",
     "pug-cli": "^1.0.0-alpha6",
     "purify-css": "^1.2.5",
-    "uncss": "^0.17.2"
+    "uncss": "^0.17.3"
   }
 }