Bump express from 3.0.6 to 4.17.3 in /public/libs/font-awesome-animation

Bumps [express](https://github.com/expressjs/express) from 3.0.6 to 4.17.3.
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/master/History.md)
- [Commits](expressjs/express@3.0.6...4.17.3)

---
updated-dependencies:
- dependency-name: express
  dependency-type: direct:development
...

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Author: dependabot[bot]