[pre-commit.ci] pre-commit autoupdate (#1189)

updates:
- [github.com/psf/black: 22.6.0 → 22.8.0](psf/black@22.6.0...22.8.0)
- [github.com/PyCQA/flake8: 4.0.1 → 5.0.4](PyCQA/flake8@4.0.1...5.0.4)

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

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/psf/black
-    rev: 22.6.0
+    rev: 22.8.0
     hooks:
       - id: black
         exclude: ^(oauth2_provider/migrations/|tests/migrations/)
@@ -21,7 +21,7 @@ repos:
       - id: isort
         exclude: ^(oauth2_provider/migrations/|tests/migrations/)
   - repo: https://github.com/PyCQA/flake8
-    rev: 4.0.1
+    rev: 5.0.4
     hooks:
       - id: flake8
         exclude: ^(oauth2_provider/migrations/|tests/migrations/)