[pre-commit.ci] pre-commit autoupdate (#559)

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

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

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -42,7 +42,7 @@ repos:
       hooks:
           - id: black
     - repo: https://github.com/asottile/pyupgrade
-      rev: "v3.19.1"
+      rev: "v3.20.0"
       hooks:
           - id: pyupgrade
             args: ["--py37-plus", "--keep-mock"]