vm2: Incomplete nodejs.* symbol filtering lets sandbox override host WebStream state checks

Summary vm2 current head v3.11.5, commit 7a1f5100b96f48d34e0fe104ab37c0acc5944f92 still exposes registered Node.js internal symbols from host WebStream prototypes to sandbox code. The prior nodejs. symbol hardening blocks Symbol.for'nodejs.' at the source, but the extraction filters and bridge...