build(deps): bump http-proxy-middleware and lwr

Bumps [http-proxy-middleware](https://github.com/chimurai/http-proxy-middleware) to 2.0.7 and updates ancestor dependency [lwr](https://github.com/salesforce-experience-platform-emu/lwr/tree/HEAD/packages/lwr). These dependencies need to be updated together.


Updates `http-proxy-middleware` from 0.21.0 to 2.0.7
- [Release notes](https://github.com/chimurai/http-proxy-middleware/releases)
- [Changelog](https://github.com/chimurai/http-proxy-middleware/blob/v2.0.7/CHANGELOG.md)
- [Commits](chimurai/http-proxy-middleware@v0.21.0...v2.0.7)

Updates `lwr` from 0.12.4 to 0.15.6
- [Commits](https://github.com/salesforce-experience-platform-emu/lwr/commits/HEAD/packages/lwr)

---
updated-dependencies:
- dependency-name: http-proxy-middleware
  dependency-type: indirect
- dependency-name: lwr
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>