Prebuild images also for arm64

[orgads]

No description provided.

[laverdet]

Thanks.

I'm not sure if you saw but I've been working on a from-scratch rewrite of isolated-vm over here https://github.com/laverdet/isolated-vm/tree/experimental

The big feature is that v8 is directly compiled into isolated-vm, so the version of isolated-vm isn't directly tied to the nodejs version anymore. I also had to completely rework the build pipeline since building v8 can be challenging in the Github environment.

There's not really much to show right now but I have some good architectural progress.

[orgads]

What's the binary size when you build v8? Aren't there pre-built binary packages of v8 that can be used?