build(deps): bump http-proxy-3 from 1.20.3 to 1.20.4

Bumps [http-proxy-3](https://github.com/sagemathinc/http-proxy-3) from 1.20.3 to 1.20.4.
- [Changelog](https://github.com/sagemathinc/http-proxy-3/blob/main/.auto-changelog)
- [Commits](https://github.com/sagemathinc/http-proxy-3/commits)

---
updated-dependencies:
- dependency-name: http-proxy-3
  dependency-version: 1.20.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]