[pre-commit.ci] pre-commit autoupdate (#63)

updates:
- [github.com/psf/black: 23.10.0 → 23.12.1](psf/black@23.10.0...23.12.1)
- [github.com/astral-sh/ruff-pre-commit: v0.1.2 → v0.1.9](astral-sh/ruff-pre-commit@v0.1.2...v0.1.9)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

.pre-commit-config.yaml

@@ -1,12 +1,12 @@
 files: "inequality\/"
 repos:
   - repo: https://github.com/psf/black
-    rev: "23.10.0"
+    rev: "23.12.1"
     hooks:
       - id: black
         language_version: python3
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: "v0.1.2"
+    rev: "v0.1.9"
     hooks:
       - id: ruff