FIX Update signature for resolve_lora_variant (#2618)

The function signature was missing **kwargs, which results in a failure
after merging #2571.

Author: BenjaminBossan

src/peft/tuners/lora/bnb.py

@@ -315,7 +315,7 @@ def __init__(
                 lora_bias=lora_bias,
             )
 
-        def resolve_lora_variant(self, *, use_dora: bool) -> Optional[LoraVariant]:
+        def resolve_lora_variant(self, *, use_dora: bool, **kwargs) -> Optional[LoraVariant]:
             if not use_dora:
                 return None