Fix: the output log is incorrect (#8577)

### What problem does this PR solve?

Fix: the output log is incorrect

### Type of change

- [ ] Bug Fix (non-breaking change which fixes an issue)

Co-authored-by: liang <xiaofeng.liang@landstech.com.cn>

rag/utils/es_conn.py

                 if str(e).find("Timeout") > 0:
                     continue
                 raise e
-        logger.error("ESConnection.search timeout for 3 times!")
+        logger.error(f"ESConnection.search timeout for {ATTEMPT_TIME} times!")
         raise Exception("ESConnection.search timeout.")
 
     def get(self, chunkId: str, indexName: str, knowledgebaseIds: list[str]) -> dict | None:
                 if str(e).find("Timeout") > 0:
                     continue
                 raise e
-        logger.error("ESConnection.get timeout for 3 times!")
+        logger.error(f"ESConnection.get timeout for {ATTEMPT_TIME} times!")
         raise Exception("ESConnection.get timeout.")
 
     def insert(self, documents: list[dict], indexName: str, knowledgebaseId: str = None) -> list[str]:
             except Exception:
                 logger.exception("ESConnection.sql got exception")
                 return None
-        logger.error("ESConnection.sql timeout for 3 times!")
+        logger.error(f"ESConnection.sql timeout for {ATTEMPT_TIME} times!")
         return None

rag/utils/opensearch_coon.py

                 if str(e).find("Timeout") > 0:
                     continue
                 raise e
-        logger.error("OSConnection.search timeout for 3 times!")
+        logger.error(f"OSConnection.search timeout for {ATTEMPT_TIME} times!")
         raise Exception("OSConnection.search timeout.")
 
     def get(self, chunkId: str, indexName: str, knowledgebaseIds: list[str]) -> dict | None:
                 if str(e).find("Timeout") > 0:
                     continue
                 raise e
-        logger.error("OSConnection.get timeout for 3 times!")
+        logger.error(f"OSConnection.get timeout for {ATTEMPT_TIME} times!")
         raise Exception("OSConnection.get timeout.")
 
     def insert(self, documents: list[dict], indexName: str, knowledgebaseId: str = None) -> list[str]:
             except Exception:
                 logger.exception("OSConnection.sql got exception")
                 return None
-        logger.error("OSConnection.sql timeout for 3 times!")
+        logger.error(f"OSConnection.sql timeout for {ATTEMPT_TIME} times!")
         return None