List table options not working when rendering markdown

[schmoelder]

Describe the bug

When adding some additional options such as :align: center or widths: grid to a table and then trying to display it using display(Markdown(my_table)), the alignment (and other properties) are not working as expected.

I expected the table to look like this:

But instead, it looks like this:

Note, the name / reference works as expected.

Reproduce the bug

````{code-cell} ipython3
---
mystnb:
  markdown_format: myst
  remove_code_source: true
---
from IPython.display import display, Markdown

name = "my_table_embedded"
caption = "Some values in a table"

my_table = f"""
```{{table}} {caption} 
:name: {name}
:align: center
:widths: grid

| short | looooooooooooooooooooooooooooooooooooooooong |
| - | - |
| some | value |
```
"""

display(Markdown(my_table))
````

{numref}`my_table_embedded` shows some values.

For reference, here is the plain table that renders correctly:

```{table} "Some values in a table"
:name: my_table_plain
:align: center
:widths: grid

| short | looooooooooooooooooooooooooooooooooooooooong |
| - | - |
| some | value |
```

List your environment

Jupyter Book : 1.0.4.post1 External ToC : 1.0.1 MyST-Parser : 3.0.1 MyST-NB : 1.2.0 Sphinx Book Theme : 1.1.4 Jupyter-Cache : 1.0.1 NbClient : 0.10.2

Link to relevant documentation: https://myst-nb.readthedocs.io/en/latest/render/format_code_cells.html#markdown

Edit: I also just found this issue. So maybe it's a duplicate? But since in my situation it seems to work when parsing the regular table and does not work when executing code, I presume it's actually a myst-nb issue. Admittedly, I don't always fully understand which part of the jupyter stack does what.