fix(core): ESM detection when using export async function (#2425)

Author: lucasfernog

.changes/fix-esm-detection.md

@@ -1,5 +1,6 @@
 ---
 "tauri": patch
+"tauri-codegen": patch
 ---
 
-Fix ES Module detection for default imports with relative paths or scoped packages.
+Fix ES Module detection for default imports with relative paths or scoped packages and exporting of async functions.

core/tauri-codegen/src/embedded_assets.rs

@@ -202,7 +202,7 @@ impl EmbeddedAssets {
           "export \\{",
           "export\\*",
           "export \\*",
-          "export (default|class|let|const|function)",
+          "export (default|class|let|const|function|async)",
         ])
         .unwrap()
         .is_match(&js)