node 20 seems to fail with the updated jsdom, locally I had tested with 18 - lets downgrade till we can find a solution

.github/workflows/tests.yml

@@ -121,7 +121,7 @@ jobs:
     - name: Setup Node
       uses: actions/setup-node@v4
       with:
-        node-version: '20'
+        node-version: '18'
         cache: 'npm'
         cache-dependency-path: 'js/package-lock.json'