Merge pull request #39 from python-jsonschema/pre-commit-ci-update-config

[pre-commit.ci] pre-commit autoupdate

Author: Julian

.pre-commit-config.yaml

@@ -33,6 +33,6 @@ repos:
         id: black
         args: ["--line-length", "79"]
   - repo: https://github.com/DavidAnson/markdownlint-cli2
-    rev: v0.11.0
+    rev: v0.12.1
     hooks:
       - id: markdownlint-cli2