Update dependency jsdom to v11.12.0

Author: renovate[bot]

package.json

@@ -33,7 +33,7 @@
     "eslint-plugin-import": "^2.18.2",
     "esm": "^3.2.25",
     "husky": "^3.1.0",
-    "jsdom": "11.6.1",
+    "jsdom": "11.12.0",
     "jsdom-global": "3.0.2",
     "mocha": "^5.0.0",
     "nyc": "^14.1.1",