Bump poetry in /python/helpers in the poetry group across 1 directory

Bumps the poetry group with 1 update in the /python/helpers directory: [poetry](https://github.com/python-poetry/poetry).


Updates `poetry` from 1.8.5 to 2.1.1
- [Release notes](https://github.com/python-poetry/poetry/releases)
- [Changelog](https://github.com/python-poetry/poetry/blob/main/CHANGELOG.md)
- [Commits](python-poetry/poetry@1.8.5...2.1.1)

---
updated-dependencies:
- dependency-name: poetry
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: poetry
...

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

Author: dependabot[bot]

python/helpers/requirements.txt

@@ -4,7 +4,7 @@ flake8==7.1.0
 hashin==1.0.3
 pipenv==2024.0.2
 plette==2.1.0
-poetry==1.8.5
+poetry==2.1.1
 # TODO: Replace 3p package `tomli` with 3.11's new stdlib `tomllib` once we drop support for Python 3.10.
 tomli==2.0.1