[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/pre-commit/pre-commit-hooks: 38b88246ccc552bffaaf54259d064beeee434539 → 8fe62d14e0b4d7d845a7022c5c2c3ae41bdd3f26](pre-commit/pre-commit-hooks@38b8824...8fe62d1)
- [github.com/psf/black: 19f6aa8208154de4560ee1e4a3e638e120dcdba5 → f1d4e742c91dd5179d742b0db9293c4472b765f8](psf/black@19f6aa8...f1d4e74)
- [github.com/executablebooks/mdformat: 0c0af8f5055b092cc0ffb90e20ae4a03af3a0e8a → a5f167d00d7a1990e69ee02efacc15d6136ea1aa](hukkin/mdformat@0c0af8f...a5f167d)

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
 - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: 38b88246ccc552bffaaf54259d064beeee434539  # frozen: v4.0.1
+  rev: 8fe62d14e0b4d7d845a7022c5c2c3ae41bdd3f26  # frozen: v4.1.0
   hooks:
   - id: check-yaml
   - id: check-toml
@@ -14,7 +14,7 @@ repos:
   hooks:
   - id: isort
 - repo: https://github.com/psf/black
-  rev: 19f6aa8208154de4560ee1e4a3e638e120dcdba5  # frozen: 21.11b1
+  rev: f1d4e742c91dd5179d742b0db9293c4472b765f8  # frozen: 21.12b0
   hooks:
   - id: black
 - repo: https://github.com/PyCQA/flake8
@@ -30,7 +30,7 @@ repos:
   hooks:
   - id: docformatter
 - repo: https://github.com/executablebooks/mdformat
-  rev: 0c0af8f5055b092cc0ffb90e20ae4a03af3a0e8a  # frozen: 0.7.11
+  rev: a5f167d00d7a1990e69ee02efacc15d6136ea1aa  # frozen: 0.7.13
   hooks:
   - id: mdformat
     files: 'README.md'