deps: V8: cherry-pick d406bfd64653

Original commit message:

    [base] Fix the return of ClockNow on IBMi

    The API thread_cputime() is only defined but not yet implemented on IBMi.

    Change-Id: I8ea7ff724e749f537b54e75a00d718500807ca8a
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1957831
    Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
    Reviewed-by: Clemens Backes <clemensb@chromium.org>
    Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
    Cr-Commit-Position: refs/heads/master@{#65392}

Refs: v8/v8@d406bfd

PR-URL: #30819
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

common.gypi

@@ -38,7 +38,7 @@
 
     # 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.25',
+    'v8_embedder_string': '-node.26',
 
     ##### V8 defaults for Node.js #####
 

deps/v8/src/base/platform/time.cc

@@ -70,6 +70,9 @@ V8_INLINE int64_t ClockNow(clockid_t clk_id) {
 #if defined(V8_OS_AIX)
   thread_cputime_t tc;
   if (clk_id == CLOCK_THREAD_CPUTIME_ID) {
+#if defined(__PASE__)  // CLOCK_THREAD_CPUTIME_ID clock not supported on IBMi
+    return 0;
+#endif
     if (thread_cputime(-1, &tc) != 0) {
       UNREACHABLE();
     }