update the raptor library

.github/workflows/validate.yml

@@ -18,12 +18,13 @@ jobs:
       - name: Install dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install -y raptor-utils
+          sudo apt-get install -y raptor2-utils
 
       - name: Validate ontology files
         run: |
           for file in *.ttl *.rdf *.owl; do
             if [[ -f "$file" ]]; then
-              rapper -i turtle "$file" -o turtle > /dev/null
+              rapper -i turtle "$file" -o turtle > /dev/null || exit 1
+              echo "Validated: $file"
             fi
           done