chore: Update Python dev dep: Bump black from 26.3.1 to 26.5.1

Bumps [black](https://github.com/psf/black) from 26.3.1 to 26.5.1.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@26.3.1...26.5.1)

---
updated-dependencies:
- dependency-name: black
  dependency-version: 26.5.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

poetry.lock

@@ -45,7 +45,7 @@ pytest-tap = "*"
 # coverage.py integration
 pytest-cov = "*"
 # opinionated code formatter
-black = ">=22"
+black = ">=26.5.1"
 # type hints checker
 mypy = { version = "*", extras = ["faster-cache"] }
 # xml library, used for outputting HTML reports from mypy, etc.