Bump jsdom from 15.1.1 to 16.5.0 in /test

Bumps [jsdom](https://github.com/jsdom/jsdom) from 15.1.1 to 16.5.0.
- [Release notes](https://github.com/jsdom/jsdom/releases)
- [Changelog](https://github.com/jsdom/jsdom/blob/master/Changelog.md)
- [Commits](jsdom/jsdom@15.1.1...16.5.0)

---
updated-dependencies:
- dependency-name: jsdom
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

test/package.json

@@ -37,7 +37,7 @@
     "enzyme": "^3.11.0",
     "enzyme-shallow-equal": "^1.0.0",
     "html-element-map": "^1.3.0",
-    "jsdom": "~15.1.0",
+    "jsdom": "~16.5.0",
     "lodash.isequal": "^4.5.0",
     "mocha-wrap": "^2.1.0",
     "object-inspect": "^1.11.0",