chore(package): update jquery to version 3.5.1

Closes #125

Author: greenkeeper[bot]

package.json

@@ -40,7 +40,7 @@
     "guide4you-builder": "^3.5.1",
     "guide4you-proxy": "github:KlausBenndorf/guide4you-proxy#v1.1.0",
     "http-server": "0.11.1",
-    "jquery": "3.3.1",
+    "jquery": "3.5.1",
     "mocha": "5.2.0",
     "ol": "5.2.0",
     "phantomjs-prebuilt": "2.1.14",