Bump cookie and youch in /proxy (#76)

Bumps [cookie](https://github.com/jshttp/cookie) and [youch](https://github.com/poppinss/youch). These dependencies needed to be updated together.

Updates `cookie` from 0.5.0 to 0.7.2
- [Release notes](https://github.com/jshttp/cookie/releases)
- [Commits](jshttp/cookie@v0.5.0...v0.7.2)

Updates `youch` from 3.3.3 to 3.3.4
- [Release notes](https://github.com/poppinss/youch/releases)
- [Changelog](https://github.com/poppinss/youch/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/poppinss/youch/commits)

---
updated-dependencies:
- dependency-name: cookie
  dependency-type: indirect
- dependency-name: youch
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>