Fix Test PyPi installation

.github/workflows/publish.yml

@@ -60,14 +60,13 @@ jobs:
         run: |
           VERSION="${{ steps.get_version.outputs.version }}"
           echo "Waiting for gradient-adk==$VERSION to be available on TestPyPI..."
-          for i in {1..30}; do
-            if pip install --dry-run --index-url https://test.pypi.org/simple/ \
-                          --extra-index-url https://pypi.org/simple/ \
-                          gradient-adk==$VERSION 2>&1 | grep -q "Would install"; then
+          for i in $(seq 1 30); do
+            HTTP_CODE=$(curl -s -o /dev/null -w "%{http_code}" "https://test.pypi.org/pypi/gradient-adk/$VERSION/json")
+            if [ "$HTTP_CODE" = "200" ]; then
               echo "✅ Package is available on TestPyPI"
               exit 0
             fi
-            echo "Attempt $i/30: Package not yet available, waiting 10s..."
+            echo "Attempt $i/30: Package not yet available (HTTP $HTTP_CODE), waiting 10s..."
             sleep 10
           done
           echo "❌ Package not available after 5 minutes"
@@ -88,7 +87,7 @@ jobs:
           source test_env/bin/activate
 
           # Install the package from TestPyPI with regular PyPI as fallback for dependencies
-          pip install --index-url https://test.pypi.org/simple/ \
+          pip install --no-cache-dir --index-url https://test.pypi.org/simple/ \
                       --extra-index-url https://pypi.org/simple/ \
                       gradient-adk==$VERSION
 
@@ -119,4 +118,4 @@ jobs:
         uses: actions/upload-artifact@v4
         with:
           name: python-package-distributions
-          path: dist/
+          path: dist/