Release GH Action works on Mac but not Linux/Windows
I'm a bit stumped as to what's going wrong since Windows and Linux give different errors. On Mac, it seems to be working.

[Here](https://github.com/IQTLabs/librtd/blob/99afada038718b080bb9185a449a586f17dc5d2f/.github/workflows/release.yml)'s the GH action. The parts that I modified are the installation steps in which I first install my package and then the dependencies for the CLI package. 

The errors I'm getting can be seen [here for Linux](https://github.com/IQTLabs/librtd/runs/1377822007?check_suite_focus=true) and [here for Windows](https://github.com/IQTLabs/librtd/runs/1377822020?check_suite_focus=true). Briefly, on Linux, I'm getting this:

```python
Traceback (most recent call last):
  File "<string>", line 1, in <module>
IndexError: list index out of range
```

On Windows, I'm not able to use the `python3` function:

```
python3: D:\a\_temp\ea2d772e-0efd-40be-942c-5d46b8d41f17.ps1:8
Line |
   8 |  python3 setup.py bdist_wheel
     |  ~~~~~~~
     | The term 'python3' is not recognized as the name of a cmdlet, function, script file, or operable
     | program. Check the spelling of the name, or if a path was included, verify that the path is correct
     | and try again.
```

Do you have any suggestions? I'm so happy that librtd is finally close to release!