Bump the pipenv group in /python/helpers with 1 update

Bumps the pipenv group in /python/helpers with 1 update: [pipenv](https://github.com/pypa/pipenv).


Updates `pipenv` from 2023.11.17 to 2023.12.1
- [Release notes](https://github.com/pypa/pipenv/releases)
- [Changelog](https://github.com/pypa/pipenv/blob/main/CHANGELOG.md)
- [Commits](pypa/pipenv@v2023.11.17...v2023.12.1)

---
updated-dependencies:
- dependency-name: pipenv
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: pipenv
...

Signed-off-by: dependabot[bot] <support@github.com>

python/helpers/requirements.txt

@@ -2,7 +2,7 @@ pip==23.3.2
 pip-tools==7.3.0
 flake8==7.0.0
 hashin==0.17.0
-pipenv==2023.11.17
+pipenv==2023.12.1
 pipfile==0.0.2
 poetry==1.7.1