deps: silence irrelevant V8 warning

PR-URL: #45579 Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>

Author: targos

common.gypi

@@ -36,7 +36,7 @@
 
  # Reset this number to 0 on major V8 upgrades.
  # Increment by one for each non-official patch applied to deps/v8.
- 'v8_embedder_string': '-node.2',
+ 'v8_embedder_string': '-node.3',
 
  ##### V8 defaults for Node.js #####
 

deps/v8/include/v8-persistent-handle.h

@@ -252,7 +252,7 @@ class NonCopyablePersistentTraits {
  * This will clone the contents of storage cell, but not any of the flags, etc.
  */
 template <class T>
-struct V8_DEPRECATED("Use v8::Global instead") CopyablePersistentTraits {
+struct CopyablePersistentTraits {
  using CopyablePersistent = Persistent<T, CopyablePersistentTraits<T>>;
  static const bool kResetInDestructor = true;
  template <class S, class M>