chore: pre-commit autoupdate

updates:
- [github.com/asottile/pyupgrade: v3.19.1 → v3.20.0](asottile/pyupgrade@v3.19.1...v3.20.0)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -29,7 +29,7 @@ repos:
   - id: isort
 
 - repo: https://github.com/asottile/pyupgrade
-  rev: v3.19.1
+  rev: v3.20.0
   hooks:
   - id: pyupgrade
     args: ['--py37-plus']