【Fix】fix mtp bug (#3139)

Author: freeliuzc

fastdeploy/model_executor/layers/sample/sampler.py

@@ -447,8 +447,8 @@ def forward_cuda(
             sampling_metadata.min_dec_lens,
             sampling_metadata.eos_token_ids,
             share_inputs["seq_lens_this_time"],
-            share_inputs["seq_lens_encoder"],
-            share_inputs["seq_lens_decoder"],
+            share_inputs["output_padding_offset"],
+            share_inputs["output_cum_offsets"],
             max_model_len,
         )
         probs = F.softmax(logits)