add substrate-interface to test

Author: basfroman

.github/workflows/e2e-tests.yml

@@ -138,7 +138,9 @@ jobs:
         uses: astral-sh/setup-uv@v4
 
       - name: install dependencies
-        run: uv sync --extra dev --dev
+        run: |
+          uv sync --extra dev --dev
+          uv run pip install substrate-interface
 
       - name: Download Cached Docker Image
         uses: actions/download-artifact@v4