chore(deps): update dependency black to >=26.1.0 (#76)

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

Author: renovate[bot]

pdm.lock

@@ -57,7 +57,7 @@ ignore = ["E731"]
 
 [dependency-groups]
 dev = [
-  "black>=25.12.0",
+  "black>=26.1.0",
   "mypy>=1.19.1",
   "ruff>=0.14.14",
   "pytest>=9.0.2",