[pre-commit.ci] pre-commit autoupdate (#7029)

<!--pre-commit.ci start-->
updates:
- [github.com/asottile/pyupgrade: v3.0.0 →
v3.1.0](asottile/pyupgrade@v3.0.0...v3.1.0)
<!--pre-commit.ci end-->

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

.pre-commit-config.yaml

@@ -72,7 +72,7 @@ repos:
   - id: detect-private-key
     exclude: ^examples/
 - repo: https://github.com/asottile/pyupgrade
-  rev: 'v3.0.0'
+  rev: 'v3.1.0'
   hooks:
   - id: pyupgrade
     args: ['--py36-plus']