fix: run pytest directly from venv for lowest-direct

Author: felixweinberger

.github/workflows/shared.yml

@@ -83,7 +83,18 @@ jobs:
           uv run --no-project --no-sync python -c "from anyio._backends import _asyncio; print('Import successful')" || echo "Import failed"
 
       - name: Run pytest
-        run: uv run ${{ matrix.dep-resolution.name == 'lowest-direct' && '--no-project --no-sync' || '--frozen --no-sync' }} pytest
+        shell: bash
+        run: |
+          if [ "${{ matrix.dep-resolution.name }}" == "lowest-direct" ]; then
+            # Run pytest directly from venv to avoid any uv resolution issues
+            if [ "$RUNNER_OS" == "Windows" ]; then
+              .venv/Scripts/python -m pytest
+            else
+              .venv/bin/python -m pytest
+            fi
+          else
+            uv run --frozen --no-sync pytest
+          fi
 
   readme-snippets:
     runs-on: ubuntu-latest