deps: V8: cherry-pick highway@989a498fdf3

Original commit message:

    GCC 15 removed avx10.2-512 target

    PiperOrigin-RevId: 823560321

Refs: google/highway@989a498
Fixes: #60566
PR-URL: #61898
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Filip Skokan <[email protected]>
Reviewed-By: Rafael Gonzaga <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>

Author: richardlau

common.gypi

@@ -40,7 +40,7 @@
 
     # 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/third_party/highway/src/hwy/ops/set_macros-inl.h

@@ -187,12 +187,13 @@
 #define HWY_TARGET_STR_AVX3_SPR HWY_TARGET_STR_AVX3_ZEN4
 #endif
 
-#if HWY_COMPILER_GCC_ACTUAL >= 1500 || HWY_COMPILER_CLANG >= 2200
-#if HWY_HAVE_EVEX512
+// Support for avx10.2-512 was removed between clang 22 and 23 without a
+// feature test macro.
+#if HWY_COMPILER_CLANG >= 2200 && HWY_HAVE_EVEX512
 #define HWY_TARGET_STR_AVX10_2 HWY_TARGET_STR_AVX3_SPR ",avx10.2-512"
-#else
+// Recent compilers drop the -512 suffix because 512 bits are always available.
+#elif HWY_COMPILER_GCC_ACTUAL >= 1500 || HWY_COMPILER_CLANG >= 2200
 #define HWY_TARGET_STR_AVX10_2 HWY_TARGET_STR_AVX3_SPR ",avx10.2"
-#endif  // HWY_HAVE_EVEX512
 #else
 #define HWY_TARGET_STR_AVX10_2 HWY_TARGET_STR_AVX3_SPR
 #endif