Published jsapi spec is out of date

[Ms2ger]

https://webassembly.github.io/spec/js-api/ doesn't reflect the changes in #1037, for example.

[binji]

@ericprud we'll need to merge this into the wg_v1 branch

[lukewagner]

FWIW, the CR reflects this change; do we just need to update the GH page branch?

[binji]

Looks like this is up-to-date now, closing.