Github Action for building executables with PyInstaller
To build your application, you need to specify where your source code is via the `path` argument, this defaults to `src`.
The source code directory should have your `.spec` file that PyInstaller generates. If you don't have one, you'll need to run PyInstaller once locally to generate it.
If the `src` folder has a `requirements.txt` file, the packages will be installed into the environment before PyInstaller runs.
A big thank you to all the contributors over at <https://github.com/cdrx/docker-pyinstaller>, this action is just a modified version of their docker container, thank you!