`equation` environment under `$$`

Bug description

My qmd file contains a julia code cell, and the output of the cell is a equation environment.
When I rendered it into a html file, it works correctly.
But when I rendered it into a latex file, it creates a latex file with the following environment

$$
\begin{equation}
ZZZ
\end{equation}
$$

When I render a latex file containing such blocks, it gives an error.

Steps to reproduce

```{julia}
using Symbolics
Symbolics.variables(:x, 1:3)
```

Expected behavior

\begin{equation}
\left[
\begin{array}{c}
x_1 \\
x_2 \\
x_3 \\
\end{array}
\right]
\end{equation}

Actual behavior

$$ \begin{equation}
\left[
\begin{array}{c}
x_1 \\
x_2 \\
x_3 \\
\end{array}
\right]
\end{equation}
 $$

Your environment

No response

Quarto check output

Quarto 1.4.553
[✓] Checking versions of quarto binary dependencies...
Pandoc version 3.1.11: OK
Dart Sass version 1.69.5: OK
Deno version 1.37.2: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
Version: 1.4.553
Path: /Applications/quarto/bin

[✓] Checking tools....................OK
TinyTeX: (external install)
Chromium: (not installed)

[✓] Checking LaTeX....................OK
Using: TinyTex
Path: /Users/likanzhan/Library/TinyTeX/bin/universal-darwin
Version: 2024

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

[✓] Checking Python 3 installation....OK
Version: 3.10.13 (Conda)
Path: /Users/likanzhan/.julia/conda/3/aarch64/bin/python
Jupyter: 5.7.1
Kernels: julia-1.10, python3

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

[✓] Checking R installation...........OK
Version: 4.3.1
Path: /Library/Frameworks/R.framework/Resources
LibPaths:
- /Library/Frameworks/R.framework/Versions/4.3-arm64/Resources/library
knitr: 1.45
rmarkdown: 2.25

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

Start with the Julia-cell reproduction in the issue and compare the generated HTML and LaTeX output. Trace the Quarto rendering path that wraps the equation environment, then verify that the LaTeX output contains the equation environment without an enclosing $$ block and renders successfully.