Merge pull request #1473 from jupyterhub/pre-commit-ci-update-config

[pre-commit.ci] pre-commit autoupdate

Author: minrk

.pre-commit-config.yaml

@@ -22,8 +22,8 @@ repos:
         exclude: check-tmp
 
   # Autoformat: Python code
-  - repo: https://github.com/psf/black
-    rev: 25.1.0
+  - repo: https://github.com/psf/black-pre-commit-mirror
+    rev: 25.9.0
     hooks:
       - id: black
         args:
@@ -35,7 +35,7 @@ repos:
 
   # Autoformat: Python code
   - repo: https://github.com/pycqa/isort
-    rev: 6.0.1
+    rev: 6.1.0
     hooks:
       - id: isort
         args: