[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/python-jsonschema/check-jsonschema: 0.29.4 → 0.30.0](python-jsonschema/check-jsonschema@0.29.4...0.30.0)
- [github.com/sirosen/texthooks: 0.6.7 → 0.6.8](sirosen/texthooks@0.6.7...0.6.8)
- [github.com/executablebooks/mdformat: 0.7.18 → 0.7.21](hukkin/mdformat@0.7.18...0.7.21)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -19,12 +19,12 @@ repos:
   - id: check-yaml
 
 - repo: https://github.com/python-jsonschema/check-jsonschema
-  rev: 0.29.4
+  rev: 0.30.0
   hooks:
   - id: check-github-workflows
 
 - repo: https://github.com/sirosen/texthooks
-  rev: 0.6.7
+  rev: 0.6.8
   hooks:
   - id: fix-smartquotes
   - id: fix-spaces
@@ -55,6 +55,6 @@ repos:
     exclude: shortcodes|plugins|CODE_OF_CONDUCT.rst
 
 - repo: https://github.com/executablebooks/mdformat
-  rev: 0.7.18
+  rev: 0.7.21
   hooks:
   - id: mdformat