chore(guardrails): annotate Alice WonderFence __init__ **kwargs for basedpyright

The basedpyright reportMissingParameterType gate flagged the lone unannotated
parameter in the new module (**kwargs on WonderFenceGuardrail.__init__), one
over the codebase ceiling. Annotate it **kwargs: Any; within the file's
any-discipline budget. No behavior change.

litellm/proxy/guardrails/guardrail_hooks/alice_wonderfence/alice_wonderfence.py

@@ -76,7 +76,7 @@ class WonderFenceGuardrail(CustomGuardrail):
             Union[GuardrailEventHooks, list[GuardrailEventHooks], Mode] | None
         ) = None,
         default_on: bool = True,
-        **kwargs,
+        **kwargs: Any,
     ) -> None:
         """Initialize the Alice WonderFence guardrail.