🧼 Improve validate changelog error message

.github/workflows/validate-changelog.yml

@@ -18,6 +18,6 @@ jobs:
       - name: Validate CHANGELOG format
         run: |
           if ! grep -qE '^## \[[0-9]+\.[0-9]+\.[0-9]+\] - [0-9]{4}-[0-9]{2}-[0-9]{2}' CHANGELOG.md; then
-            echo "CHANGELOG format is incorrect, versions should be in the format ## X.Y.Z"
+            echo "CHANGELOG format is incorrect, version section title should be in the format ## [X.Y.Z] - YYYY-MM-DD"
             exit 1
           fi