Fix issue

Author: minggangw

.github/workflows/windows-build-and-test.yml

@@ -49,7 +49,15 @@ jobs:
         cd C:\dev
         irm https://raw.githubusercontent.com/ros2/ros2/refs/heads/rolling/pixi.toml -OutFile pixi.toml
         pixi install
+
+
+    - name: Source the pixi environment
+      shell: cmd
+      run: |
+        cd C:\dev
         pixi shell
+        call "c:\dev\${{ needs.identify-ros-distro.outputs.distro }}\ros2-windows\local_setup.bat"
+        ros2 run demo_nodes_py talker
 
     - uses: actions/checkout@v4
 
@@ -62,8 +70,5 @@ jobs:
     - name: Test rclnodejs
       shell: cmd
       run: |
-        cd C:\dev
-        irm https://raw.githubusercontent.com/ros2/ros2/refs/heads/rolling/pixi.toml -OutFile pixi.toml
-        pixi shell
         call "c:\dev\${{ needs.identify-ros-distro.outputs.distro }}\ros2-windows\local_setup.bat"
         ros2 run demo_nodes_py talker