[Bugfix] Fix deepseek percision issue and add acc ci for it (#905)

### What this PR does / why we need it?
Fix deepseek percision issue on V0 and add acc ci for it
Fixes https://github.com/vllm-project/vllm-ascend/issues/1062
### How was this patch tested?
CI passed with new added test.

Signed-off-by: MengqingCao <cmq0113@163.com>

vllm_ascend/attention/attention.py

@@ -720,6 +720,7 @@ class AscendAttentionBackendImpl(AttentionImpl):
         blocksparse_params: Optional[Dict[str, Any]] = None,
         logits_soft_cap: Optional[float] = None,
         attn_type: str = AttentionType.DECODER,
+        kv_sharing_target_layer_name: Optional[str] = None,
         use_irope: bool = False,
     ) -> None:
         self.num_heads = num_heads
@@ -961,6 +962,7 @@ class AscendMLAAttentionBackendImpl(MLAAttentionImpl):
         blocksparse_params: Optional[Dict[str, Any]] = None,
         logits_soft_cap: Optional[float] = None,
         attn_type: str = AttentionType.DECODER,
+        kv_sharing_target_layer_name: Optional[str] = None,
         **extra_impl_args,
     ) -> None:
         self.num_heads = num_heads