build(deps): bump http-proxy-middleware from 4.1.1 to 4.2.0

Bumps [http-proxy-middleware](https://github.com/chimurai/http-proxy-middleware) from 4.1.1 to 4.2.0.
- [Release notes](https://github.com/chimurai/http-proxy-middleware/releases)
- [Changelog](https://github.com/chimurai/http-proxy-middleware/blob/master/CHANGELOG.md)
- [Commits](chimurai/http-proxy-middleware@v4.1.1...v4.2.0)

---
updated-dependencies:
- dependency-name: http-proxy-middleware
  dependency-version: 4.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]