[INFR] Fix veraPDF validation in CI workflow

.github/workflows/build.ci.yml

@@ -158,6 +158,7 @@ jobs:
           wget $VERAPDFURL -O $VERAPDFPATH/$VERAPDFZIPFILENAME
           unzip -j $VERAPDFPATH/$VERAPDFZIPFILENAME -d $VERAPDFPATH
           rm -f $VERAPDFPATH/$VERAPDFZIPFILENAME
+          echo "Creating veraPDF install config"
           echo "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>
             <AutomatedInstallation langpack=\"eng\">
                 <com.izforge.izpack.panels.htmlhello.HTMLHelloPanel id=\"welcome\"/>
@@ -173,6 +174,7 @@ jobs:
                 <com.izforge.izpack.panels.install.InstallPanel id=\"install\"/>
                 <com.izforge.izpack.panels.finish.FinishPanel id=\"finish\"/>
             </AutomatedInstallation>" > $VERAPDFPATH/install.xml
+          echo "Installing veraPDF"
           VERAPDFINSTALLJAR=$(find $VERAPDFPATH -type f -name "*.jar" | head -n 1); [[ -z "$VERAPDFINSTALLJAR" ]] && { echo "No veraPDF installer found" >&2; exit 1; } || echo "veraPDF installer fount at $VERAPDFINSTALLJAR"
           java -jar $VERAPDFINSTALLJAR $VERAPDFPATH/install.xml
           echo "Creating test PDF"
@@ -182,6 +184,8 @@ jobs:
           echo "Result of validation"
           echo $VERAPDFRESULT
           [[ $VERAPDFRESULT == PASS* ]] && echo "PDF validation passed" || { echo "Error: PDF validation not passed" >&2; exit 1; }
+          echo "Removing veraPDF"
+          rm -rf $VERAPDFPATH
 
       - name: Publish Unit Test Results
         uses: EnricoMi/publish-unit-test-result-action@v2