chore(pre-commit.ci): pre-commit autoupdate (#11)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -24,7 +24,7 @@ repos:
         args: ["--fix=lf"]
       - id: trailing-whitespace
   - repo: https://github.com/google/yamlfmt
-    rev: v0.20.0
+    rev: v0.21.0
     hooks:
       - id: yamlfmt
         types_or: [json, yaml]