Bump path-to-regexp and express in /tests

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

Updates `path-to-regexp` from 0.1.7 to 0.1.13
- [Release notes](https://github.com/pillarjs/path-to-regexp/releases)
- [Changelog](https://github.com/pillarjs/path-to-regexp/blob/v.0.1.13/History.md)
- [Commits](pillarjs/path-to-regexp@v0.1.7...v.0.1.13)

Updates `express` from 4.17.1 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@4.17.1...v4.22.1)

---
updated-dependencies:
- dependency-name: path-to-regexp
  dependency-version: 0.1.13
  dependency-type: indirect
- dependency-name: express
  dependency-version: 4.22.1
  dependency-type: indirect
...

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Author: dependabot[bot]