build(deps): bump hyperpolymath/a2ml-validate-action

Bumps [hyperpolymath/a2ml-validate-action](https://github.com/hyperpolymath/a2ml-validate-action) from 59145c7d1039fa3059b3ecacdb50ee23d7505898 to 5468b7ff0f5129a74d25af5f2468df11a706dc70.
- [Release notes](https://github.com/hyperpolymath/a2ml-validate-action/releases)
- [Changelog](https://github.com/hyperpolymath/a2ml-validate-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/hyperpolymath/a2ml-validate-action/compare/59145c7d1039fa3059b3ecacdb50ee23d7505898...5468b7ff0f5129a74d25af5f2468df11a706dc70)

---
updated-dependencies:
- dependency-name: hyperpolymath/a2ml-validate-action
  dependency-version: 5468b7ff0f5129a74d25af5f2468df11a706dc70
  dependency-type: direct:production
...

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Author: dependabot[bot]

.github/workflows/dogfood-gate.yml

@@ -39,7 +39,7 @@ jobs:
 
       - name: Validate A2ML manifests
         if: steps.detect.outputs.count > 0
-        uses: hyperpolymath/a2ml-validate-action@59145c7d1039fa3059b3ecacdb50ee23d7505898 # main
+        uses: hyperpolymath/a2ml-validate-action@5468b7ff0f5129a74d25af5f2468df11a706dc70 # main
         with:
           path: '.'
           strict: 'false'