Update wasi requirement from 0.11 to 0.12

Updates the requirements on [wasi](https://github.com/bytecodealliance/wasi) to permit the latest version.
- [Commits](bytecodealliance/wasi-rs@0.11.0...0.12.0)

---
updated-dependencies:
- dependency-name: wasi
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.toml

@@ -57,7 +57,7 @@ winapi = { version = "0.3", features = ["profileapi"] }
 web-sys = { version = "0.3", features = ["Window", "Performance"] }
 
 [target.'cfg(all(target_arch = "wasm32", target_os = "wasi"))'.dependencies]
-wasi = "0.11"
+wasi = "0.12"
 
 [dev-dependencies]
 average = "0.14"