Use consistent log file names, introduced initLogger (#3403)

### What problem does this PR solve?

Use consistent log file names, introduced initLogger

### Type of change

- [ ] Bug Fix (non-breaking change which fixes an issue)
- [ ] New Feature (non-breaking change which adds functionality)
- [ ] Documentation Update
- [x] Refactoring
- [ ] Performance Improvement
- [ ] Other (please describe):

agent/component/keyword.py

@@ -13,12 +13,12 @@
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
 #
+import logging
 import re
 from abc import ABC
 from api.db import LLMType
 from api.db.services.llm_service import LLMBundle
 from agent.component import GenerateParam, Generate
-from api.utils.log_utils import logger
 
 
 class KeywordExtractParam(GenerateParam):
@@ -58,5 +58,5 @@ class KeywordExtract(Generate, ABC):
                             self._param.gen_conf())
 
         ans = re.sub(r".*keyword:", "", ans).strip()
-        logger.info(f"ans: {ans}")
+        logging.debug(f"ans: {ans}")
         return KeywordExtract.be_output(ans)