test having both python vaults at the same time in integration tests

.github/workflows/integration.yml

@@ -100,13 +100,18 @@ jobs:
         run: python -m pip install .
         working-directory: python
 
+      - name: Install Python PyO3 vault
+        run: python -m pip install --target ../pyo3 .
+        working-directory: python-pyo3
+
       - name: Add execute rights and run --version for all versions
         run: |
           chmod +x bin/go/vault bin/rust/vault nodejs/dist/cli/vault.js
           vault --version
           bin/go/vault --version
           bin/rust/vault --version
           nodejs/dist/cli/vault.js --version
+          pyo3/bin/vault --version
 
       - name: Store secret with Python
         run: vault -s 'secret-python' -v 'sha-${{github.sha}}' -w