std.zig.system: Make getExternalExecutor() less opinionated about Wasmtime.
Wasmtime supports both wasm32 and wasm64, and can run freestanding WASM binaries
just fine (although the usefulness of the latter is fairly limited).
c3f2222a59Alex Rønne Petersen committed on 4/2/2025, 9:58:55 PMparent11db7ea