wamr: descargar versiones anteriores

Highlights — changes since v3.0.0-dev.12:
- Outbound HTTP futures sleep instead of busy-spinning — worker-thread-settled wasi:http futures get a cross-platform self-pipe Waker on PendingHttpFetchShared; httpFetchWorker signals it after publishing done, pollableBackend(.http_future_response) hands poll() the waker's read fd (P2 block path), and driveAsyncEvents parks on the waker fds rather than re-polling on a 1ms cadence (P3 waitable-set path). pollable.block over a future-incoming-response no longer burns a full core during the round-trip, matching wasmtime's "sleep on the socket" CPU profile; Windows keeps its short re-poll fallback via a comptime-guarded parkOnHttpWakers (#833, #839).
- Dead code elimination re-enabled safely — DCE is wired back into every default IR pipeline, with a regression test guarding that it stays installed across all pipelines (#834, #837).
Install:
ghr install cataggar/wamr@v3.0.0-dev.13
See INSTALL.md for more options.