Build web version with emsdk 4.0.5 instead of latest

Author: adepierre

.github/workflows/build.yaml

@@ -82,8 +82,8 @@ jobs:
           wget -q https://github.com/emscripten-core/emsdk/archive/master.tar.gz
           tar -xvf master.tar.gz
           emsdk-master/emsdk update
-          emsdk-master/emsdk install latest
-          emsdk-master/emsdk activate latest
+          emsdk-master/emsdk install 4.0.5
+          emsdk-master/emsdk activate 4.0.5
 
       - name: Configure cmake
         run: |