[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/pre-commit/mirrors-mypy: v0.990 → v0.991](https://github.com/pre-commit/mirrors-mypy/compare/v0.990...v0.991)

.pre-commit-config.yaml

diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index afd1fa8..8670465 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -37,7 +37,7 @@
     hooks:
     -   id: flake8
 -   repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.990
+    rev: v0.991
     hooks:
     -   id: mypy
         additional_dependencies: [types-all]