[Security] Bump jquery from 3.3.1 to 3.4.0 (#618)
[Security] Bump jquery from 3.3.1 to 3.4.0 (#618)

Bumps [jquery](https://github.com/jquery/jquery) from 3.3.1 to 3.4.0. **This update includes security fixes.**
- [Release notes](https://github.com/jquery/jquery/releases)
- [Commits](https://github.com/jquery/jquery/compare/3.3.1...3.4.0)
pivotal-cf/pivotal-ui,pivotal-cf/pivotal-ui,pivotal-cf/pivotal-ui