fixed integrational test

Author: pavelrevak

.github/workflows/integration.yml

@@ -23,8 +23,11 @@ jobs:
         device: [ESP32]
     steps:
       - uses: actions/checkout@v4
-      - run: pip install -e .
+      - name: Setup venv
+        run: |
+          python3 -m venv .venv
+          .venv/bin/pip install -e .
       - name: Integration tests (${{ matrix.device }})
         env:
           MPYTOOL_TEST_PORT_RW: ${{ env[format('MPYTOOL_TEST_{0}', matrix.device)] }}
-        run: python -m unittest tests.test_integration tests.test_cli -v
+        run: .venv/bin/python -m unittest tests.test_integration tests.test_cli -v