Set rmw_fastrtps_cpp as default

Author: minggangw

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

@@ -62,6 +62,7 @@ jobs:
     - name: Build rclnodejs
       shell: cmd
       run: |
+        set RMW_IMPLEMENTATION=rmw_fastrtps_cpp
         call "c:\dev\${{ matrix.ros_distribution }}\ros2-windows\setup.bat"
         npm i
 
@@ -70,5 +71,5 @@ jobs:
     - name: Test rclnodejs
       shell: cmd
       run: |
+        set RMW_IMPLEMENTATION=rmw_fastrtps_cpp
         call "c:\dev\${{ matrix.ros_distribution }}\ros2-windows\setup.bat"
-        cmd /c "if NOT ${{ matrix.ros_distribution }}==rolling if NOT ${{ matrix.ros_distribution }}==kilted (npm test)"