Add a few tests to cover other folder names (#10356)

Added additional tests to cover other folder names in regards to
[#10193](https://github.com/zed-industries/zed/issues/10193) and
[#9729](https://github.com/zed-industries/zed/issues/9729).

I had a similar issue but with folder names like '2.5' and '2.5_backup'.
I didn't see test coverage for those kinds of file names, so wanted to
add them.

![2024-04-10 09 07
03](https://github.com/zed-industries/zed/assets/127535196/eef26ce2-b0c7-4b1f-98ed-426ce1df0af2)

Release Notes:

- N/A

Co-authored-by: Marshall Bowers <elliott.codes@gmail.com>