Update cmake-multi-platform.yml

.github/workflows/cmake-multi-platform.yml

@@ -69,6 +69,7 @@ jobs:
       run: cmake --build ${{ steps.strings.outputs.build-output-dir }} --config ${{ matrix.build_type }}
 
     - name: Test
+      if: runner.os != 'Windows'
       working-directory: ${{ steps.strings.outputs.build-output-dir }}/Doctest_tests
       # Execute tests defined by the CMake configuration. Note that --build-config is needed because the default Windows generator is a multi-config generator (Visual Studio generator).
       # See https://cmake.org/cmake/help/latest/manual/ctest.1.html for more detail