No figure caption with hugo-md

Bug description

Format hugo-md does not create captions, only alt-text

Steps to reproduce

---
title: Hugo Captions
format: 
  html:
    fig-height: 3
  hugo-md:
    fig-height: 2.5
---


```{r}
#| label: fig-hugo
#| echo: FALSE
#| fig-cap: "This should be a numbered caption"
plot(rnorm(100))
```

With format: html, there is a numbered caption.

```
<figure class="quarto-float quarto-float-fig figure">
<div aria-describedby="fig-hugo-caption-0ceaefa1-69ba-4598-a22c-09a6ac19f8ca">
<img src="hugo_caption_files/figure-html/fig-hugo-1.png" class="img-fluid figure-img" width="672">
</div>
<figcaption class="quarto-float-caption-bottom quarto-float-caption quarto-float-fig" id="fig-hugo-caption-0ceaefa1-69ba-4598-a22c-09a6ac19f8ca">
Figure&nbsp;1: This should be a numbered caption
</figcaption>
</figure>
```

With format: hugo-md, there is no caption, only an alt-text.

```
<img
src="hugo_caption.markdown_strict_files/figure-markdown_strict/fig-hugo-1.png"
id="fig-hugo" alt="Figure 1: This should be a numbered caption" />`
```

Expected behavior

Hugo needs figure captions

Actual behavior

No figure captions

Your environment

No response

Quarto check output

Quarto 1.6.36