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):

graphrag/mind_map_extractor.py

@@ -14,8 +14,8 @@
 #  limitations under the License.
 #
 
-import collections
 import logging
+import collections
 import os
 import re
 import traceback
@@ -29,7 +29,6 @@ from rag.llm.chat_model import Base as CompletionLLM
 import markdown_to_json
 from functools import reduce
 from rag.utils import num_tokens_from_string
-from api.utils.log_utils import logger
 
 
 @dataclass
@@ -193,6 +192,6 @@ class MindMapExtractor:
         gen_conf = {"temperature": 0.5}
         response = self._llm.chat(text, [{"role": "user", "content": "Output:"}], gen_conf)
         response = re.sub(r"```[^\n]*", "", response)
-        logger.info(response)
-        logger.info(self._todict(markdown_to_json.dictify(response)))
+        logging.debug(response)
+        logging.debug(self._todict(markdown_to_json.dictify(response)))
         return self._todict(markdown_to_json.dictify(response))