Fix phar compilation action

Author: pyrech

.github/actions/phar/action.yaml

@@ -24,6 +24,6 @@ runs:
       working-directory: tools/phar
 
     - name: Ensure PHAR is OK
-      run: build/jolinotif.phar
+      run: build/jolinotif.phar --help
       shell: bash
       working-directory: tools/phar

.github/workflows/build-phar.yaml

@@ -22,5 +22,5 @@ jobs:
         uses: actions/upload-artifact@v3
         with:
           name: 'jolinotif'
-          path: tools/phar/build/castor.phar
+          path: tools/phar/build/jolinotif.phar
           if-no-files-found: error