[Inference]Adapted to the triton attn kernels (#5264)

* adapted to the triton attn kernels

* fix pad input

* adapted to copy_kv_to_blocked_cache

* fix ci test

* update kv memcpy

* remove print

colossalai/inference/core/engine.py

@@ -236,6 +236,7 @@ class InferenceEngine:
         output_list = []
         batch = self.request_handler.schedule()
 
+        # TODO: padding_id is used for generating attn_mask and will be removed if nopad version is supported.
         logits = self.model(
             batch,
             self.k_cahce,