Update cmake-multi-platform.yml

Author: TheNicker

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

@@ -80,6 +80,7 @@ jobs:
         run: cmake --build ${{ github.workspace }}/build --config ${{ matrix.build_type }}
 
       - name: Run tests
+        if: matrix.mingw == false
         working-directory: >-
           ${{ github.workspace }}/build/Example${{
             matrix.os == 'windows-latest' && format('/{0}', matrix.build_type) || ''