Bump serve-static and express

Bumps [serve-static](https://github.com/expressjs/serve-static) and [express](https://github.com/expressjs/express). These dependencies needed to be updated together.

Updates `serve-static` from 1.15.0 to 1.16.3
- [Release notes](https://github.com/expressjs/serve-static/releases)
- [Changelog](https://github.com/expressjs/serve-static/blob/master/HISTORY.md)
- [Commits](expressjs/serve-static@v1.15.0...v1.16.3)

Updates `express` from 4.18.1 to 4.22.1
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/v4.22.1/History.md)
- [Commits](expressjs/express@4.18.1...v4.22.1)

---
updated-dependencies:
- dependency-name: serve-static
  dependency-version: 1.16.3
  dependency-type: indirect
- dependency-name: express
  dependency-version: 4.22.1
  dependency-type: indirect
...

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Author: dependabot[bot]