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/pubmed.py

@@ -13,13 +13,13 @@
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
 #
+import logging
 from abc import ABC
 from Bio import Entrez
 import re
 import pandas as pd
 import xml.etree.ElementTree as ET
 from agent.component.base import ComponentBase, ComponentParamBase
-from api.utils.log_utils import logger
 
 
 class PubMedParam(ComponentParamBase):
@@ -65,5 +65,5 @@ class PubMed(ComponentBase, ABC):
             return PubMed.be_output("")
 
         df = pd.DataFrame(pubmed_res)
-        logger.debug(f"df: {df}")
+        logging.debug(f"df: {df}")
         return df