[pre-commit.ci] pre-commit autoupdate (agronholm#476)

updates:
- [github.com/asottile/pyupgrade: v3.0.0 → v3.1.0](asottile/pyupgrade@v3.0.0...v3.1.0)

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

.pre-commit-config.yaml

@@ -23,7 +23,7 @@ repos:
  exclude: "docs/conf.py"
 
  - repo: https://github.com/asottile/pyupgrade
- rev: v3.0.0
+ rev: v3.1.0
  hooks:
  - id: pyupgrade
  args: [ "--py37-plus", "--keep-mock" ]