[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/asottile/pyupgrade: v2.31.0 → v2.31.1](asottile/pyupgrade@v2.31.0...v2.31.1)
- [github.com/pre-commit/mirrors-mypy: v0.931 → v0.940](pre-commit/mirrors-mypy@v0.931...v0.940)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -22,12 +22,12 @@ repos:
           - flake8-bugbear
         exclude: doc/source/conf.py
   - repo: https://github.com/asottile/pyupgrade
-    rev: v2.31.0
+    rev: v2.31.1
     hooks:
     -   id: pyupgrade
         args: [--py36-plus]
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.931
+    rev: v0.940
     hooks:
       - id: mypy
         additional_dependencies: