[fix]修复eagle 创建cu_num_tokens类型错误问题

vllm/v1/spec_decode/eagle.py

@@ -438,7 +438,7 @@ class EagleProposer:
         # [batch_size]
         num_accepted_tokens_tensor: torch.Tensor,
     ) -> tuple[torch.Tensor, torch.Tensor]:
-        cu_num_tokens = torch.arange(cu_target_query_lens.shape[0], device=cu_target_query_lens.device)
+        cu_num_tokens = torch.arange(cu_target_query_lens.shape[0], device=cu_target_query_lens.device, dtype=torch.int32)
         token_indices = num_accepted_tokens_tensor + cu_target_query_lens[:-1]
         return cu_num_tokens, token_indices