Fix GPT-SoVITS v2 version and model loading problem (#191)

* Fix: move version to vits_config.model to prevent multiple keyword error

* Fix: gsv2 model loading and unloading

Update: g2pk2 reuqirements

Update: Optimize download

Fix: Support for limiting language range in VITS

Fix ssml id

Update seed

Fix text

Fix index

Update split_languages for Bert-VITS2

Change to torch==2.2.0

Merge pull request #142 from Artrajz/dev

update bert_vits2 v2.4