deps: V8: silence irrelevant warnings

Backport-PR-URL: #34356
PR-URL: #26685
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>

PR-URL: #32116
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

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.5',
+    'v8_embedder_string': '-node.6',
 
     ##### V8 defaults for Node.js #####
 

deps/v8/include/v8.h

@@ -7295,7 +7295,6 @@ class PromiseRejectMessage {
 typedef void (*PromiseRejectCallback)(PromiseRejectMessage message);
 
 // --- Microtasks Callbacks ---
-V8_DEPRECATE_SOON("Use *WithData version.")
 typedef void (*MicrotasksCompletedCallback)(Isolate*);
 typedef void (*MicrotasksCompletedCallbackWithData)(Isolate*, void*);
 typedef void (*MicrotaskCallback)(void* data);