Add SweRank support

Author: Raptors65

src/rank_llm/rerank/listwise/__init__.py

@@ -1,11 +1,13 @@
 from .rank_gemini import SafeGenai
 from .rank_gpt import SafeOpenai
 from .rank_listwise_os_llm import RankListwiseOSLLM
+from .swerank_reranker import SweRankReranker
 from .vicuna_reranker import VicunaReranker
 from .zephyr_reranker import ZephyrReranker
 
 __all__ = [
     "RankListwiseOSLLM",
+    "SweRankReranker",
     "VicunaReranker",
     "ZephyrReranker",
     "SafeOpenai",