update mirrors-prettier to v3.8.1

[pre-commit.ci] pre-commit autoupdate

Author: InessaPawson

.pre-commit-config.yaml

@@ -41,7 +41,7 @@ repos:
       - id: vale
 
   - repo: https://github.com/rbubley/mirrors-prettier
-    rev: v3.7.4
+    rev: v3.8.1
     hooks:
       - id: prettier
         types_or: [yaml, html, css, scss, javascript, json, toml]