Update the internal jQuery version (used for tests) to the latest version to resolve a CVE.
As Foundation supports jQuery `>=2.2.0`, the jQuery peer dependency is not changed. PeerDependencies versions in `package.json` should only reflect the actual compatibility with the package, regardless of promotion or "potential" security issue. It's up to the end developer to choose the package version corresponding to its own needs and to the risks comming with its own usage.