chore: update pre-commit hooks (pybind#103)

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

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

@@ -55,7 +55,7 @@ repos:
 
 # Checking static types
 - repo: https://github.com/pre-commit/mirrors-mypy
-  rev: "v0.990"
+  rev: "v0.991"
   hooks:
     - id: mypy
       files: "setup.py"