build(deps-dev): bump @feathersjs/express from 5.0.19 to 5.0.20

Bumps [@feathersjs/express](https://github.com/feathersjs/feathers/tree/HEAD/packages/express) from 5.0.19 to 5.0.20.
- [Release notes](https://github.com/feathersjs/feathers/releases)
- [Changelog](https://github.com/feathersjs/feathers/blob/dove/packages/express/CHANGELOG.md)
- [Commits](https://github.com/feathersjs/feathers/commits/v5.0.20/packages/express)

---
updated-dependencies:
- dependency-name: "@feathersjs/express"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>