[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/pre-commit/mirrors-mypy: v0.930 → v0.931](pre-commit/mirrors-mypy@v0.930...v0.931)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -24,7 +24,7 @@ repos:
     - id: reorder-python-imports
       args: ['--application-directories=.:src']
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.930  # NOTE: keep this in sync with tox.ini
+    rev: v0.931  # NOTE: keep this in sync with tox.ini
     hooks:
       - id: mypy
         files: ^(src|tests)