[Promise.any] Fix errors allocation

Bug: chromium:1379054
Change-Id: Ibfcdd4ddc3c9a26471094074c8e7810d93abc898
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3988924
Commit-Queue: Marja Hölttä <marja@chromium.org>
Auto-Submit: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83968}

src/builtins/promise-any.tq

@@ -119,7 +119,7 @@ PromiseAnyRejectElementClosure(
           kPromiseAnyRejectElementRemainingSlot);
 
   // 9. Set errors[index] to x.
-  const newCapacity = IntPtrMax(SmiUntag(remainingElementsCount), index + 1);
+  const newCapacity = index + 1;
   if (newCapacity > errors.length_intptr) deferred {
       errors = ExtractFixedArray(errors, 0, errors.length_intptr, newCapacity);
       *ContextSlot(