chore(deps): bump @unleash/proxy from 1.0.1 to 1.4.8

Bumps [@unleash/proxy](https://github.com/Unleash/unleash-proxy) from 1.0.1 to 1.4.8.
- [Release notes](https://github.com/Unleash/unleash-proxy/releases)
- [Changelog](https://github.com/Unleash/unleash-proxy/blob/main/CHANGELOG.md)
- [Commits](Unleash/unleash-proxy@v1.0.1...v1.4.8)

---
updated-dependencies:
- dependency-name: "@unleash/proxy"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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