use gcc in ubuntu

Author: KurtGokhan

.github/workflows/build.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Setup
         uses: ./.github/actions/setup-cpp
         with:
-          toolchain: Clang
+          toolchain: GCC
 
       - name: Setup JS
         uses: ./.github/actions/setup-js