[pre-commit.ci] pre-commit suggestions

updates:
- [github.com/asottile/pyupgrade: v2.23.0 → v2.29.0](asottile/pyupgrade@v2.23.0...v2.29.0)
- [github.com/psf/black: 21.7b0 → 21.9b0](psf/black@21.7b0...21.9b0)
- [github.com/asottile/blacken-docs: v1.10.0 → v1.11.0](adamchainz/blacken-docs@v1.10.0...v1.11.0)

.pre-commit-config.yaml

@@ -35,7 +35,7 @@ repos:
       - id: detect-private-key
 
   - repo: https://github.com/asottile/pyupgrade
-    rev: v2.23.0
+    rev: v2.29.0
     hooks:
       - id: pyupgrade
         args: [--py36-plus]
@@ -60,13 +60,13 @@ repos:
         args: [--in-place, --wrap-summaries=115, --wrap-descriptions=120]
 
   - repo: https://github.com/psf/black
-    rev: 21.7b0
+    rev: 21.9b0
     hooks:
       - id: black
         name: Format code
 
   - repo: https://github.com/asottile/blacken-docs
-    rev: v1.10.0
+    rev: v1.11.0
     hooks:
       - id: blacken-docs
         args: [ --line-length=120 ]