Bump https://github.com/rbubley/mirrors-prettier from v3.9.6 to 3.9.9 (#2887)

Bumps [https://github.com/rbubley/mirrors-prettier](https://github.com/rbubley/mirrors-prettier) from v3.9.6 to 3.9.9.
- [Commits](rbubley/mirrors-prettier@v3.9.6...v3.9.9)

---
updated-dependencies:
- dependency-name: https://github.com/rbubley/mirrors-prettier
  dependency-version: 3.9.9
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.pre-commit-config.yaml

@@ -42,7 +42,7 @@ repos:
           - id: black
 
     - repo: https://github.com/rbubley/mirrors-prettier
-      rev: v3.9.6
+      rev: v3.9.9
       hooks:
           - id: prettier
             # https://github.com/rbubley/mirrors-prettier/issues/3