Bump plette from 0.4.4 to 1.0.0 in /python/helpers

Bumps [plette](https://github.com/sarugaku/plette) from 0.4.4 to 1.0.0.
- [Release notes](https://github.com/sarugaku/plette/releases)
- [Changelog](https://github.com/sarugaku/plette/blob/master/CHANGELOG.rst)
- [Commits](sarugaku/plette@v0.4.4...v1.0.0)

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

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

python/helpers/requirements.txt

@@ -3,7 +3,7 @@ pip-tools==7.4.1
 flake8==7.0.0
 hashin==1.0.1
 pipenv==2023.11.17
-plette==0.4.4
+plette==1.0.0
 poetry==1.8.2
 # TODO: Replace 3p package `toml` with 3.11's new stdlib `tomllib` once we drop support for Python 3.10.
 toml==0.10.2