fix(github-release): update pre-commit hook gruntwork-io/pre-commit to v0.1.21 (#703)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.pre-commit-config.yaml

@@ -9,6 +9,6 @@ repos:
           - .yamllint.yaml
         id: yamllint
   - repo: https://github.com/gruntwork-io/pre-commit
-    rev: v0.1.20
+    rev: v0.1.21
     hooks:
       - id: terraform-fmt