chore(package): update jsdom to version 12.0.0

Author: greenkeeper[bot]

package.json

@@ -53,7 +53,7 @@
     "gzip-size": "^5.0.0",
     "jest": "^23.4.0",
     "jest-enzyme": "^6.0.2",
-    "jsdom": "^11.11.0",
+    "jsdom": "^12.0.0",
     "pretty-bytes": "^5.1.0",
     "react": "^16.4.1",
     "react-dom": "^16.4.1",