src: fix incorrect SIGSEGV handling in NODE_USE_V8_WASM_TRAP_HANDLER

Pass SA_SIGINFO to sa_flags so the TrapWebAssemblyOrContinue is treated
as sa_sigaction, not sa_handler, otherwise siginfo_t* info contains
some garbage

PR-URL: nodejs#35282
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Minwoo Jung <nodecorelab@gmail.com>

src/node.cc

@@ -661,6 +661,7 @@ inline void PlatformInit() {
     struct sigaction sa;
     memset(&sa, 0, sizeof(sa));
     sa.sa_sigaction = TrapWebAssemblyOrContinue;
+    sa.sa_flags = SA_SIGINFO;
     CHECK_EQ(sigaction(SIGSEGV, &sa, nullptr), 0);
   }
 #endif  // defined(_WIN32)