[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/psf/black: 21.10b0 → 21.11b1](psf/black@21.10b0...21.11b1)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/psf/black
-    rev: 21.10b0
+    rev: 21.11b1
     hooks:
       - id: black
         exclude: ^(oauth2_provider/migrations/|tests/migrations/)