Format code with yapf

This commit fixes the style issues introduced in 9c35e63 according to the output
from yapf.

Details: https://deepsource.io/gh/kokarare1212/librespot-python/transform/ba63481c-00f8-4a04-aaf3-cf434dc75352/

Author: deepsource-autofix[bot]

librespot/audio/decoders.py

@@ -67,7 +67,8 @@ def get_file(self, files: typing.List[Metadata.AudioFile]):
             if vorbis is not None:
                 self.logger.warning(
                     "Using {} because preferred {} couldn't be found.".format(
-                        Metadata.AudioFile.Format.Name(vorbis.format), self.preferred))
+                        Metadata.AudioFile.Format.Name(vorbis.format),
+                        self.preferred))
             else:
                 self.logger.fatal(
                     "Couldn't find any Vorbis file, available: {}")