[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/pre-commit/mirrors-prettier: v2.7.1 → v3.0.0-alpha.6](pre-commit/mirrors-prettier@v2.7.1...v3.0.0-alpha.6)

.pre-commit-config.yaml

@@ -61,7 +61,7 @@ repos:
           - pep8-naming==0.13.3
           - flake8-pyproject==1.2.2
   - repo: https://github.com/pre-commit/mirrors-prettier
-    rev: "v2.7.1"
+    rev: "v3.0.0-alpha.6"
     hooks:
       - id: prettier
         additional_dependencies: