Merge pull request #2 from python-jsonschema/pre-commit-ci-update-config

[pre-commit.ci] pre-commit autoupdate

Author: Julian

.pre-commit-config.yaml

@@ -18,6 +18,6 @@ repos:
     hooks:
       - id: isort
   - repo: https://github.com/pre-commit/mirrors-prettier
-    rev: "v2.7.1"
+    rev: "v3.0.0-alpha.1"
     hooks:
       - id: prettier