Cant read .fit file

Hi!
I have .fit files from bryton rider 15. But unfortunly i cant open them by using python api. 

```

import argparse
import sys

from garmin_fit_sdk import Decoder, Stream

def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('file', metavar='FILE', type=argparse.FileType('r'))
    args = parser.parse_args()
   
    print(args.file.read())
   
    stream = Stream.from_file(args.file.read())
    decoder = Decoder(stream)
    messages, errors = decoder.read()

    print(errors)
    print(messages)

if __name__ == "__main__":
    sys.exit(main())
```
Folowing code giving error "UnicodeDecodeError: 'utf-8' codec can't decode byte 0xf2 in position 2: invalid continuation byte"
That same file i can read on https://www.fitfiletools.com/ without any problems.