Activate environment in Lint-and-test workflow

Author: rerpha

.github/workflows/Lint-and-test.yml

@@ -17,6 +17,7 @@ jobs:
       - uses: astral-sh/setup-uv@v6
         with:
           python-version: ${{ matrix.version }}
+          activate-environment: "true"
       - name: install requirements
         run: uv sync --extra dev
       - name: run unit tests