fix(deps): update dependency query-string to v9

Author: renovate[bot]

package.json

@@ -34,7 +34,7 @@
     "node-sass": "5.0.0"
   },
   "dependencies": {
-    "query-string": "6.14.1",
+    "query-string": "9.1.2",
     "unist-util-visit": "2.0.3"
   }
 }