Fix install

Author: sanders41

.github/workflows/testing.yml

@@ -50,6 +50,7 @@ jobs:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: Install dependencies
         run: |
+          uv venv
           uv sync --frozen --all-extras
           uv run maturin build
       - name: mypy check
@@ -73,6 +74,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
         run: |
+          uv venv
           uv sync --frozen --all-extras
           uv run maturin build
       - name: Run tests