OSX starting FastFlix - _execute_child PermissionError: /ffmpeg/4.4_2/bin

```
Traceback (most recent call last):
File "fastflix/application.py", line 158, in start_app
ProgressBar(app, startup_tasks)
File "fastflix/widgets/progress_bar.py", line 60, in __init__
self.run()
File "reusables/wrappers.py", line 293, in wrapper
File "reusables/wrappers.py", line 285, in wrapper
File "fastflix/widgets/progress_bar.py", line 86, in run
task.command(config=self.app.fastflix.config, app=self.app, **task.kwargs)
File "fastflix/flix.py", line 93, in ffmpeg_configuration
res = execute([f"{config.ffmpeg}", "-version"])
File "fastflix/flix.py", line 80, in execute
return run(
File "subprocess.py", line 493, in run
File "subprocess.py", line 858, in __init__
File "subprocess.py", line 1704, in _execute_child
PermissionError: [Errno 13] Permission denied: '/usr/local/Cellar/ffmpeg/4.4_2/bin'
```

After FFmpeg and FFprobe was installed and path updated.
Got this permission issue.