fix(deps): update dependency jsdom to v16 [security]

Author: renovate[bot]

package.json

@@ -11,7 +11,7 @@
   },
   "dependencies": {
     "ejs": "^2.5.7",
-    "jsdom": "^11.3.0",
+    "jsdom": "^16.5.0",
     "probot": "^6.0.0",
     "probot-attachments": "github:probot/attachments",
     "unfurl.js": "^1.1.6"