fix: improve error handling in main function

Author: KristjanESPERANTO

scripts/get-modules.ts

@@ -561,8 +561,10 @@ async function main() {
     const message = error instanceof Error ? error.message : String(error);
     logger.error("Stage 'get-modules' failed");
     logger.error(message);
-    process.exitCode = 1;
+    process.exit(1);
   }
 }
 
-await main();
+(async () => {
+  await main();
+})();