message: fix(c-api) `wasm_trap_t**` in `wasm_instance_new` does not represent an array.
  The `wasm_trap_t**` argument of `wasm_instance_new` represents an
  output pointer to a `wasm_trap_t*`, not an array of
  `wasm_trap_t*`. This patch updates the code accordingly.
diff: @@ -41,19 +41,8 @@ pub unsafe extern "C" fn wasm_instance_new(
  }
  Err(InstantiationError::Start(runtime_error)) => {
  - let pointer = {
  let trap: Box<wasm_trap_t> = Box::new(runtime_error.into());
  - let mut traps: Vec<*mut wasm_trap_t> = Vec::with_capacity(1);
  - traps.push(Box::into_raw(trap));
  - traps.shrink_to_fit();
  -
  - let pointer = traps.as_mut_ptr();
  - mem::forget(traps);
  -
  - pointer
  - };
  -
  - *traps = *pointer;
  + *traps = Box::into_raw(trap);
  return None;
  }
  