Update poetry install command to exclude dev dependencies

.github/workflows/python-tests.yml

@@ -38,7 +38,7 @@ jobs:
         run: |
           python -m pip install poetry
           poetry config virtualenvs.create false
-          poetry install --no-interaction --no-ansi
+          poetry install --no-interaction --no-ansi --without dev
       - name: Run tests
         run: |
           export IS_UBUNTU_CI=$(test "${{ matrix.os }}" = "ubuntu-latest" && echo "true" || echo "false")