Avoid using environment in CI pipeline

.github/workflows/build.yml

@@ -28,16 +28,8 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Create venv and install dependencies
-        run: |
-          python -m venv .venv
-          .venv/Scripts/activate || source .venv/bin/activate
-          pip install -e .[dev]
-      - name: Activate venv for later steps
-        run: |
-          echo "VIRTUAL_ENV=$(pwd)/.venv" >> $GITHUB_ENV
-          echo "$(pwd)/.venv/bin" >> $GITHUB_PATH      # For Unix-like systems
-          echo "$(pwd)/.venv/Scripts" >> $GITHUB_PATH  # For Windows
+      - name: Install dependencies
+        run: pip install -e .[dev]
 
       - name: ruff
         run: ruff check .