chore: bump gha-workflow-validator to 0.5.2 (#2)

Author: erikburt

.github/workflows/gha-workflow-validation.yml

@@ -21,6 +21,6 @@ jobs:
           persist-credentials: false
 
       - name: Run gha-workflow-validator action
-        uses: smartcontractkit/.github/actions/gha-workflow-validator@782f2ba4d8fa36a9d214b791b4938259875e1412 # gha-workflow-validator@0.5.0
+        uses: smartcontractkit/.github/actions/gha-workflow-validator@gha-workflow-validator/0.5.2
         env:
           GITHUB_TOKEN: ${{ github.token }}