Update custom_utils.py

custom_utils.py

@@ -231,7 +231,7 @@ def get_remove_embedding_stage():
 def invoke_search(collection, pipeline):
     results = collection.aggregate(pipeline)
     
-    print(f"MongoDB execution time: {get_millis_elapsed()} millis")
+    print(f"Vector search millis elapsed: {get_millis_elapsed()}")
     
     return list(results)