[pre-commit.ci] pre-commit autoupdate (#690)

updates:
- [github.com/asottile/pyupgrade: v2.29.1 → v2.31.0](asottile/pyupgrade@v2.29.1...v2.31.0)

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

.pre-commit-config.yaml

@@ -56,7 +56,7 @@ repos:
         exclude: ^docs/
         additional_dependencies: [types-setuptools, types-toml]
   - repo: https://github.com/asottile/pyupgrade
-    rev: v2.29.1
+    rev: v2.31.0
     hooks:
       - id: pyupgrade
         args: [--py36-plus]