chore(deps): bump the pip group in /backend with 4 updates

Bumps the pip group in /backend with 4 updates: [certifi](https://github.com/certifi/python-certifi), [setuptools](https://github.com/pypa/setuptools), [tornado](https://github.com/tornadoweb/tornado) and [urllib3](https://github.com/urllib3/urllib3).


Updates `certifi` from 2023.7.22 to 2024.7.4
- [Commits](certifi/python-certifi@2023.07.22...2024.07.04)

Updates `setuptools` from 68.0.0 to 70.0.0
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/main/NEWS.rst)
- [Commits](pypa/setuptools@v68.0.0...v70.0.0)

Updates `tornado` from 6.4 to 6.4.1
- [Changelog](https://github.com/tornadoweb/tornado/blob/master/docs/releases.rst)
- [Commits](tornadoweb/tornado@v6.4.0...v6.4.1)

Updates `urllib3` from 2.0.7 to 2.2.2
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@2.0.7...2.2.2)

---
updated-dependencies:
- dependency-name: certifi
  dependency-type: indirect
  dependency-group: pip
- dependency-name: setuptools
  dependency-type: indirect
  dependency-group: pip
- dependency-name: tornado
  dependency-type: indirect
  dependency-group: pip
- dependency-name: urllib3
  dependency-type: indirect
  dependency-group: pip
...

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