[knitr] custom engine setting asis output does not remove all divs

Here is a demo of using a custom engine in knitr which is meant to output raw content. (More details at https://github.com/quarto-dev/quarto-cli/discussions/9163).
So the engine sets output: asis internally (results: asis in knitr context)

---
title: "Test"
format: 
  typst:
    keep-typ: true
    keep-md: true
---

```{r, echo=FALSE}
knitr::knit_engines$set(demo = function(options) {

    options[["results"]] <- "asis"

    knitr::engine_output(
      options,
      options$code,
      out = "Should be `asis` content."
    )
  })
```

## Quarto

Quarto enables you to weave together content and executable code into a finished document.

```{demo}
Do no matter
```

This is the intermediate .md

::: {.cell}

```{.demo .cell-code}
Do no matter
```


Should be `asis` content.
:::

The output wrapping is correctly removed (i.e ::: {.cell-output .cell-output-stdout} and fenced code block.

However ::: {.cell} is still there.

In code base, we decide to add the wrapping div on condition
https://github.com/quarto-dev/quarto-cli/blob/f43107222f70ca3579a520d496597b75b5bd0097/src/resources/rmd/hooks.R#L400-L415

But this is done in the chunk hook - and in fact knitr does not get the modified options from cell at this point. It could be an issue from knitr itself.

For now, it means that output: asis needs to explicitly be set on a cell that should not have the output div.