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

@@ -61,7 +61,7 @@ pytest-cov = "^7.0.0"
 tox = "*"
 mypy = "^1.19"
 isort = "^8.0.0"
-black = "^26.1.0"
+black = "^26.3.1"
 flynt = "^1.0"
 deptry = "^0.24.0"
 flake8 = "^5.0.4"