Bump the poetry group across 1 directory with 2 updates

Bumps the poetry group with 2 updates in the /python/helpers directory: [hashin](https://github.com/peterbe/hashin) and [poetry](https://github.com/python-poetry/poetry).


Updates `hashin` from 1.0.1 to 1.0.3
- [Release notes](https://github.com/peterbe/hashin/releases)
- [Commits](peterbe/hashin@1.0.1...1.0.3)

Updates `poetry` from 1.8.3 to 1.8.4
- [Release notes](https://github.com/python-poetry/poetry/releases)
- [Changelog](https://github.com/python-poetry/poetry/blob/1.8.4/CHANGELOG.md)
- [Commits](python-poetry/poetry@1.8.3...1.8.4)

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

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

python/helpers/requirements.txt

@@ -1,10 +1,10 @@
 pip==24.0
 pip-tools==7.4.1
 flake8==7.1.0
-hashin==1.0.1
+hashin==1.0.3
 pipenv==2024.0.2
 plette==2.1.0
-poetry==1.8.3
+poetry==1.8.4
 # TODO: Replace 3p package `toml` with 3.11's new stdlib `tomllib` once we drop support for Python 3.10.
 toml==0.10.2