Bump black from 26.1.0 to 26.3.1

Bumps [black](https://github.com/psf/black) from 26.1.0 to 26.3.1.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@26.1.0...26.3.1)

---
updated-dependencies:
- dependency-name: black
  dependency-version: 26.3.1
  dependency-type: direct:development
...

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

Author: dependabot[bot]

poetry.lock

@@ -28,7 +28,7 @@ gitlab = ["python-gitlab"]
 poetry-plugin-export = ">=1.8"
 
 [tool.poetry.group.dev.dependencies]
-black = "^26.1"
+black = "^26.3"
 boto3 = "^1.42.44"
 flake8 = "^7"
 mypy = "^1.19"