Update winrm-exec.py

[GrymnDolen]

1. Set the encoding configuration for sys.stdout to UTF-8 for handling special characters correctly.
   

2. Configured the locale to 'fr_FR.utf8' for special character support like "é" and "ê."
   

3. Renamed variables to adhere to Python naming conventions.
   

4. Modified the output encoding to 'cp437' for compatibility with the Windows CMD console.
   

5. Adjusted the decoding of command output in the while loop to use 'cp437' encoding.