chore(deps): update dependency black to v26 (#640)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pyproject.toml

@@ -23,7 +23,7 @@ flake8 = "7.3.0"
 flake8-pytest-style = "2.2.0"
 ruff = "0.14.13"
 coverage = "7.13.1"
-black = "25.12.0"
+black = "26.1.0"
 mypy = "1.19.1"
 bandit = "1.9.2"
 xenon = "0.9.3"