add condition

Author: astrowander

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

@@ -166,6 +166,7 @@ jobs:
         run: msbuild -m source\MeshLibDotNet.sln -p:Configuration=${{ matrix.config }}
 
      - name: Build .NET examples
+       if: matrix.runner == 'windows-2022'
        run: msbuild -m source\examples\c-sharp-examples\c-sharp-examples.sln -p:Configuration=${{ matrix.config }}
 
       - name: Build MRBind