Update .github/dependabot.yml

Co-authored-by: Stefan Henke <[email protected]>

Author: mofterdinger

.github/dependabot.yml

@@ -29,7 +29,7 @@ updates:
         - "*"
     ignore:
       - dependency-name: "express"
-        # For Express, ignore all updates for version 5
+        # For Express, ignore all updates for version 5 becaue @sap/cds requires express version 4
         versions: ["5.x"]
   - package-ecosystem: github-actions
     directory: "/"