upgrade pyinstaller version (to be complied with big sur) (#52)
upgrade pyinstaller version (to be complied with big sur) (#52)

Co-authored-by: Oren Cohen <da139629c04b61f785f7a6855d8817b229916809@orenc-mbp-2.local>
Co-authored-by: Shai Shasag <600c9aa9903c0092b93aeb0f848189e46fd6854a@waves.com>
wavesaudio/instl,wavesaudio/instl