Update EMSDK to 5.0.0 (#479)

Emscripten 4.0.12 introduced breaking change by changing module factory
to always return promise even if `WASM_ASYNC_COMPILATION=0`. To overcome this, build emscripten compiler without MODULARIZE with custom export of `createRevive`.

js/emscripten/examples/web/worker.js

@@ -1,7 +1,7 @@
 importScripts("./resolc_web.js");
 
 // Handle messages from the main thread
-onmessage = async function (e) {
+onmessage = function (e) {
   const m = createRevive();
 
   // Set input data for stdin