chore(deps): update dependency black to v26

Author: renovate[bot]

pyproject.toml

@@ -29,7 +29,7 @@ reqstool-python-decorators = "0.0.8"
 poetry-dynamic-versioning = "1.9.1"
 
 [tool.poetry.group.dev.dependencies]
-black = { version = "25.12.0" }
+black = { version = "26.1.0" }
 flake8 = { version = "7.3.0" }
 flake8-pyproject = { version = "1.2.4" }
 pytest = { version = "9.0.2" }