[sandbox] Sandboxify NativeContext::microtask_queue external pointer

Bug: v8:10391
Change-Id: I4e7d4937ac4c6332da3c63c9e8c15e75fa951f2f
Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng,v8_linux_arm64_sim_heap_sandbox_dbg_ng
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3757343Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Samuel Groß <saelo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81973}

include/v8-internal.h

@@ -371,7 +371,7 @@ constexpr uint64_t kAllExternalPointerTypeTags[] = {
 // pointer table and can only be accessed when this Isolate is active.
 #define PER_ISOLATE_EXTERNAL_POINTER_TAGS(V) \
   V(kForeignForeignAddressTag,            unsandboxed, TAG(10)) \
-  V(kNativeContextMicrotaskQueueTag,      unsandboxed, TAG(11)) \
+  V(kNativeContextMicrotaskQueueTag,        sandboxed, TAG(11)) \
   V(kEmbedderDataSlotPayloadTag,          unsandboxed, TAG(12)) \
   V(kCodeEntryPointTag,                   unsandboxed, TAG(13)) \
   V(kExternalObjectValueTag,              unsandboxed, TAG(14)) \