Add deepseek-v2.5 template

src/llamafactory/data/template.py

@@ -611,6 +611,14 @@ _register_template(
 )
 
 
+_register_template(
+    name="deepseek_v2.5",
+    format_user=StringFormatter(slots=["<｜User｜>{{content}}<｜Assistant｜>"]),
+    format_system=StringFormatter(slots=["{{content}}"]),
+    format_prefix=EmptyFormatter(slots=[{"bos_token"}]),
+)
+
+
 _register_template(
     name="deepseekcoder",
     format_user=StringFormatter(slots=["### Instruction:\n{{content}}\n### Response:"]),