feat(gate)!: wasmtime support (#669)

#### Motivation and context

Enable support for
[wit](https://github.com/WebAssembly/component-model/blob/main/design/mvp/WIT.md)
and facilitate readiness for the upcoming specs.

#### Migration notes
`#[wasmedge_bindgen]` are replaced by wit bindings.

In the old version we were restricted to`#[wasmedge_bindgen]`, which was
only available in Rust and unique to WasmEdge.
```rust
#[wasmedge_bindgen]
fn add(a: u32, b: u32) -> u32 {
   a + b
}
```

In the new implementation, wasm modules written in any language that
uses the `wit` interface are now natively supported within `typegate`.
```wit
// wit/example.wit
package example:host;
world host {
  export add: func(a: u32, b: u32) -> u32;
}
```
An implementation (eg. in Rust) may look like this..
```rust
// src/lib.rs
wit_bindgen::generate!({ world: "host" });
struct MyLib;
impl Guest for MyLib {
    fn add(a: u32, b: u32) -> u32 {
        a + b
    }
}
export!(MyLib);
```

### Checklist

- [x] The change come with new or modified tests
- [x] Hard-to-understand functions have explanatory comments
- [ ] End-user documentation is updated to reflect the change

---------

Co-authored-by: Yohe-Am <56622350+Yohe-Am@users.noreply.github.com>

.github/workflows/tests.yml

@@ -94,11 +94,11 @@ jobs:
       - uses: denoland/setup-deno@v1
         with:
           deno-version: ${{ env.DENO_VERSION }}
-      - name: Cache deno dir
-        uses: actions/cache@v4
-        with:
-          path: ${{ env.DENO_DIR }}
-          key: deno-mac-${{ hashFiles('**/deno.lock') }}
+      # - name: Cache deno dir
+      #   uses: actions/cache@v4
+      #   with:
+      #     path: ${{ env.DENO_DIR }}
+      #     key: deno-mac-${{ hashFiles('**/deno.lock') }}
       - uses: metatypedev/setup-ghjk@2e8bbf084060a18828338a7cdd43fde6feb2a3cc
       - name: Cache .venv dir
         uses: actions/cache@v4
@@ -316,7 +316,7 @@ jobs:
           NPM_CONFIG_REGISTRY=http://localhost:4873 deno cache --import-map typegate/import_map.json \
             typegate/src/main.ts \
             typegate/tests/utils/*.ts \
-            typegate/tests/runtimes/wasmedge/*.ts \
+            typegate/tests/runtimes/wasm/*.ts \
             dev/deps.ts \
             dev/utils.ts
           deno --unstable-worker-options --unstable-net coverage ./coverage --lcov > coverage.lcov