misc/wasm: add wasmedge to wasip1 script

misc/wasm: add wasmedge to wasip1 script

The wasmedge runtime will be used to test our wasip1
implementation against the WASI runtime from wasmedge.org.

For #60097

Change-Id: Ib0e886de46240b4d43d02ec8a7bc7cea0730c162
Reviewed-on: https://go-review.googlesource.com/c/go/+/494120
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>