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/leiden.py

@@ -14,8 +14,6 @@ from graspologic.utils import largest_connected_component
 import networkx as nx
 from networkx import is_empty
 
-log = logging.getLogger(__name__)
-
 
 def _stabilize_graph(graph: nx.Graph) -> nx.Graph:
     """Ensure an undirected graph with the same relationships will always be read the same way."""
@@ -99,7 +97,7 @@ def run(graph: nx.Graph, args: dict[str, Any]) -> dict[int, dict[str, dict]]:
     max_cluster_size = args.get("max_cluster_size", 12)
     use_lcc = args.get("use_lcc", True)
     if args.get("verbose", False):
-        log.info(
+        logging.debug(
             "Running leiden with max_cluster_size=%s, lcc=%s", max_cluster_size, use_lcc
         )
     if not graph.nodes(): return {}