[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/psf/black-pre-commit-mirror: 23.9.1 → 23.10.0](psf/black-pre-commit-mirror@23.9.1...23.10.0)
- [github.com/pre-commit/mirrors-mypy: v1.6.0 → v1.6.1](pre-commit/mirrors-mypy@v1.6.0...v1.6.1)

.pre-commit-config.yaml

@@ -21,7 +21,7 @@ repos:
     args: ["--py36-plus"]
 
 - repo: https://github.com/psf/black-pre-commit-mirror
-  rev: 23.9.1
+  rev: 23.10.0
   hooks:
   - id: black
 
@@ -36,7 +36,7 @@ repos:
   - id: isort
 
 - repo: https://github.com/pre-commit/mirrors-mypy
-  rev: v1.6.0
+  rev: v1.6.1
   hooks:
   - id: mypy
     exclude: docs|src/pybase64/__main__.py|conftest.py|tests|setup.py