deps: V8: cherry-pick f8d5e576b814

Original commit message:

    Fix build with older versions of GCC.

    This ports the change from bazel on v8:
    https://crrev.com/c/3368869

    Compilation errors started showing after this CL:
    https://crrev.com/c/5199515

    Change-Id: I8c161a0d9ad5c04d452c444ef4feafae2ef4f6db
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/5280535
    Reviewed-by: Leszek Swirski <leszeks@chromium.org>
    Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
    Cr-Commit-Position: refs/heads/main@{#92252}

Refs: v8/v8@f8d5e57
PR-URL: #52183
Refs: v8/v8@c4be0a9
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

common.gypi

@@ -37,7 +37,7 @@
 
     # 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.20',
+    'v8_embedder_string': '-node.21',
 
     ##### V8 defaults for Node.js #####
 

deps/v8/BUILD.gn

@@ -1585,6 +1585,10 @@ config("toolchain") {
       # of `this` in capture-by-value lambdas and preventing a build roll which
       # enables C++20 (see https://crbug.com/1374227).
       "-Wno-deprecated",
+
+      # Fix build with older versions of GCC
+      # Ported from v8 bazel: https://crrev.com/c/3368869
+      "-Wno-stringop-overflow",
     ]
   }