Merge pull request #824 from jupyter/pre-commit-ci-update-config

[pre-commit.ci] pre-commit autoupdate

Author: davidbrochart

.pre-commit-config.yaml

@@ -27,7 +27,7 @@ repos:
         args: ["--line-length", "100"]
 
   - repo: https://github.com/pre-commit/mirrors-prettier
-    rev: v2.7.1
+    rev: v3.0.0-alpha.0
     hooks:
       - id: prettier