Support inlined WASM in Node < v16 (fix #8620)

Editor assessment

Clear and well-scoped. `fix(wasm)` correctly isolates WebAssembly handling, and `support inlined WASM in Node < v16` states both the capability and the affected environment — exactly the detail that matters for a compatibility fix. The subject is imperative, lowercase, period-free, and short enough to stay clear of truncation. The one stylistic note is the inline `(fix #8620)` reference; the spec's footer pattern (`Fixes #8620` after a blank line) would keep the header purely descriptive, though this placement is common and functional. No body, so the nature of the pre-v16 failure lives in the PR. Automation infers a patch bump, correct for a targeted compatibility fix.