Windows testing issues

[CalCraven]

Bug summary

The testing suite we use includes a windows-latest test set, that is difficult to maintain because some of the dependenceis (notably packmol) do not test specifically for windows and sometimes do not behave the same as the Ubuntu-latest tests.

I think across the MoSDeF packages, we can discuss how we want to handle Windows installs, especially because universal accomodation for WSL seems to be available to Windows users.

As an example of this behavior, #1223 is failing with the pbc keyword.

[CalCraven]

Here is explicitly where they mention not testing windows in their CI.
https://github.com/m3g/packmol/blob/d7585c7633696491808b0f846dab7d2ee17f3588/.github/workflows/actions.yml#L13

[chrisjonesBSU]

I think we can drop windows testing with the prevalence of WSL.

While ubuntu tests in the CI are probably safe enough to test WSL usage, we could still add a workflow to the CI that runs on windows-latest using WSL.