[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/asottile/pyupgrade: v3.21.1 → v3.21.2](asottile/pyupgrade@v3.21.1...v3.21.2)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -18,7 +18,7 @@ repos:
   - id: black
     args: [--line-length=79, --target-version=py38]
 - repo: https://github.com/asottile/pyupgrade
-  rev: v3.21.1
+  rev: v3.21.2
   hooks:
   - id: pyupgrade
     args: [--py38-plus]