add newline

Author: sgmenda

.github/workflows/check-test-vectors.yml

@@ -66,4 +66,4 @@ jobs:
       - name: Vectors up-to-date summary
         if: steps.check_vectors.outputs.vectors_outdated == 'false'
         run: |
-          echo "✅ Test vectors are up-to-date. No action needed."
+          echo "✅ Test vectors are up-to-date. No action needed."