### Bug description

First, thank you for your work on this wonderful project!!

I  am trying to understand whether Observable variables are able to be used within text formatted as code. As part of this, `ojs` code blocks seem not to honor the `output: asis` execution option.

### Steps to reproduce

1. Create a Quarto `.qmd` file with the following contents:

````md
---
format:
  html:
    code-fold: true
    toc: true
    toc-depth: 6
    toc-expand: 2
    toc-location: right
    number-sections: true
    number-depth: 3
    toc-title: Contents
    anchor-sections: true
    smooth-scroll: true
    embed-resources: true  # Make the file self-contained.
execute:
  freeze: auto  # Re-render only when source changes
---

::: {.callout-important title="Enter variables about your project"}
```{ojs}
//| echo: false

viewof example_variable = Inputs.text({label: "Example variable"})
```
:::

Here is some example code for you to copy and paste:

Test 0: ${example_variable}

Test 1: `${example_variable}`

Test 2: `ojs example_variable`

Test 3:

```{ojs}
//| output: asis
//| echo: false
`
\`\`\`
${example_variable}
\`\`\`
`
```

Test 4:

```sh
# example using ${example_variable}
```
````

2. Render the file as HTML
3. Type "test123" into the input box.

### Expected behavior

1. All tests should replace "example_variable" with `test123`.
2. Test 3 should render code-block-formatted text, rather than a string.

### Actual behavior

1. Quarto does not interpolate variables within non-executed code blocks. (Is there an existing alternative syntax for this?)
2. The output of Test 3 is parsed as a string, rather than as Markdown.

![image](https://github.com/quarto-dev/quarto-cli/assets/3667562/7cfbf499-d365-449c-bddb-08bd1a0c65fa)


### Your environment

- IDE: VSCode 1.76.0, Quarto plugin 1.88.0
- MacOS Ventura 13.4

### Quarto check output

```bash
$ quarto check

[✓] Checking versions of quarto binary dependencies...
      Pandoc version 3.1.1: OK
      Dart Sass version 1.55.0: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
      Version: 1.3.433
      Path: /Applications/quarto/bin

[✓] Checking basic markdown render....OK

[✓] Checking Python 3 installation....OK
      Version: 3.7.16 (Conda)
      Path: /Users/<username>/mambaforge/envs/example_project/bin/python
      Jupyter: 4.12.0
      Kernels: python3

[✓] Checking Jupyter engine render....OK

[✓] Checking R installation...........(None)

      Unable to locate an installed version of R.
      Install R from https://cloud.r-project.org/
```
2023-06-28T21:46:09Z
jglev
documentation
open
`output: asis` shouldn't be advertised in OJS cell option documentation (was: OJS variables cannot be used / interpolated within non-executed code blocks)
https://github.com/quarto-dev/quarto-cli/issues/6061