fix CI2

Author: nychiang

.github/workflows/test_hiopbbpy.yml

@@ -25,7 +25,11 @@ jobs:
         run: |
           conda install -c conda-forge cyipopt pkg-config
           export LD_LIBRARY_PATH=$CONDA_PREFIX/lib:$LD_LIBRARY_PATH
-          
+    
+      - name: Verify cyipopt installation
+        run: |
+        python -c "import cyipopt; print('cyipopt OK')"
+    
       - name: Install HiOpBBPy
         run: |
           export SKIP_CYIPOPT=1