[Bug] Server does not support fairseq models

[DenysVuika]

Describe the bug

It is not possible to run the server.py with the fairseq

To Reproduce

docker run --rm -it -p 5002:5002 --platform linux/amd64 --entrypoint /bin/bash ghcr.io/idiap/coqui-tts
python3 TTS/server/server.py --model_name "tts_models/crh/fairseq/vits"

Expected behavior

No response

Logs

File "/root/TTS/server/server.py", line 111, in <module>
    synthesizer = Synthesizer(
  File "/root/TTS/utils/synthesizer.py", line 96, in __init__
    self._load_tts(tts_checkpoint, tts_config_path, use_cuda)
  File "/root/TTS/utils/synthesizer.py", line 186, in _load_tts
    self.tts_config = load_config(tts_config_path)
  File "/root/TTS/config/__init__.py", line 85, in load_config
    ext = os.path.splitext(config_path)[1]
  File "/usr/lib/python3.10/posixpath.py", line 118, in splitext
    p = os.fspath(p)
TypeError: expected str, bytes or os.PathLike object, not NoneType

Environment

Docker container

Additional context

No response

[eginhard]

Yes, the server doesn't support the fairseq models yet (also see coqui-ai#3211), also without the Docker: tts-server --model_name "tts_models/crh/fairseq/vits"