wasm: prevent bundlers from resolving import("node:timers")

(cherry picked from commit 7202a02c0a5238682de6a3a06a9b5137f02ad70c)

utils/jsffi/prelude.mjs

@@ -63,7 +63,9 @@ const setImmediate = await (async () => {
 
   // deno
   if (globalThis.Deno) {
-    return (await import("node:timers")).setImmediate;
+    try {
+      return (await import("node:timers")).setImmediate;
+    } catch {}
   }
 
   // https://developer.mozilla.org/en-US/docs/Web/API/Scheduler/postTask