build: pre-commit autoupdate

updates:
- [github.com/pre-commit/mirrors-prettier: v3.0.0-alpha.9-for-vscode → v3.0.0](pre-commit/mirrors-prettier@v3.0.0-alpha.9-for-vscode...v3.0.0)
- [github.com/asottile/pyupgrade: v3.8.0 → v3.9.0](asottile/pyupgrade@v3.8.0...v3.9.0)

.pre-commit-config.yaml

@@ -59,9 +59,9 @@ repos:
           (?x)^(
             CHANGELOG.md
           )$
-    rev: v3.0.0-alpha.9-for-vscode
+    rev: v3.0.0
   - repo: https://github.com/asottile/pyupgrade
-    rev: v3.8.0
+    rev: v3.9.0
     hooks:
       - id: pyupgrade
         args: [--py38-plus]