Update black requirement from ^24.1.0 to ^25.1.0

Updates the requirements on [black](https://github.com/psf/black) to permit the latest version.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@24.1.0...25.1.0)

---
updated-dependencies:
- dependency-name: black
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

pyproject.toml

@@ -11,12 +11,12 @@ gpiozero = "^2.0"
 paho-mqtt = "^2.0.0"
 schedule = "^1.1.0"
 mypy = "^1.0"
-black = "^24.1.0"
+black = "^25.1.0"
 
 [tool.poetry.dev-dependencies]
 pylint = "^3.0.1"
 pytest = "^8.0.0"
-black = "^24.1.0"
+black = "^25.1.0"
 mypy = "^1.0"
 
 [build-system]