[feature:] Add gdb to codespaces

[kellijohnson-NOAA]

Describe the situation that led to the request and a solution

It would be nice to have gdb pre installed on codespaces to increase the ease of using it. Especially, given that code spaces is a linux machine, which facilitates the use of gdb. This issue does not currently have anyone assigned. Please sign up for it by assigning yourself to the issue if you think that you know how to edit the container file or feel that instructions from a Google Search would be enough to get you to the finish line 🏁!

Alternative solutions

Provide instructions for users of code spaces regarding how to install it

sudo apt-get update
sudo apt-get install gdb

or at least I think that is what @Bai-Li-NOAA used in our last Code Club to install it.

Statistical validity

No response

Additional context

No response

[k-doering-NOAA]

This is already done in the case studies one, so I'll just copy it in and put in a PR: https://github.com/NOAA-FIMS/case-studies/blob/main/.devcontainer/devcontainer.json#L13