[pre-commit.ci] pre-commit autoupdate

updates:
- https://github.com/psf/black → https://github.com/psf/black-pre-commit-mirror
- [github.com/psf/black-pre-commit-mirror: 25.1.0 → 26.3.1](psf/black-pre-commit-mirror@25.1.0...26.3.1)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -1,7 +1,7 @@
 ---
 repos:
-  - repo: https://github.com/psf/black
-    rev: 25.1.0
+  - repo: https://github.com/psf/black-pre-commit-mirror
+    rev: 26.3.1
     hooks:
       - id: black
         args: [--target-version=py36]