chore(deps-dev): bump jsdom from 19.0.0 to 20.0.0 in /install

Bumps [jsdom](https://github.com/jsdom/jsdom) from 19.0.0 to 20.0.0.
- [Release notes](https://github.com/jsdom/jsdom/releases)
- [Changelog](https://github.com/jsdom/jsdom/blob/master/Changelog.md)
- [Commits](https://github.com/jsdom/jsdom/compare/19.0.0...20.0.0)

---
updated-dependencies:
- dependency-name: jsdom
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

install/package.json

@@ -156,7 +156,7 @@
         "grunt": "1.5.3",
         "grunt-contrib-watch": "1.1.0",
         "husky": "8.0.1",
-        "jsdom": "19.0.0",
+        "jsdom": "20.0.0",
         "lint-staged": "12.5.0",
         "mocha": "10.0.0",
         "mocha-lcov-reporter": "1.3.0",