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: https://github.com/nodejs/node/pull/35282


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