fix: BigVGANv2._from_pretrained() compat with newer huggingface_hub

Newer hf_hub stopped passing proxies/resume_download/local_files_only/token
to _from_pretrained(). Give them defaults so the call doesn't fail when
these kwargs are omitted.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

selva_core/ext/bigvgan_v2/bigvgan.py

@@ -365,10 +365,10 @@ class BigVGAN(
         revision: str,
         cache_dir: str,
         force_download: bool,
-        proxies: Optional[Dict],
-        resume_download: bool,
-        local_files_only: bool,
-        token: Union[str, bool, None],
+        proxies: Optional[Dict] = None,
+        resume_download: bool = False,
+        local_files_only: bool = False,
+        token: Union[str, bool, None] = None,
         map_location: str = "cpu",  # Additional argument
         strict: bool = False,  # Additional argument
         use_cuda_kernel: bool = False,