Update emscripten.yml

Author: mcbarton

.github/workflows/emscripten.yml

@@ -671,7 +671,7 @@ jobs:
                 ../
         fi
         if [[ "${{ matrix.os }}" != "macos"* ]]  && [[ "${{ matrix.clang-runtime }}" == "19" ]]; then
-            EMCC_CORES=2 emmake make 2
+            EMCC_CORES=2 emmake make -j 2 check-cppinterop
         else
             emmake make -j ${{ env.ncpus }} check-cppinterop
         fi