Feature/graphrag neo4j support multiple relations

[so-engineer]

Since the zip function adopts the length of the shorter iterable, information loss can occur.
Therefore, it is necessary to ensure that the number of embeddings matches the number of node_id_mapping.
I have made the necessary changes. Could you please review them at your convenience?

Steps to reproduce

python graphrag.py

Actual result

Ingesting to Qdrant...
len(embeddings):  25
len(node_id_mapping):  21  ←It needs to be the same as the number of embeddings.
Qdrant ingestion complete

Expected result

Ingesting to Qdrant...
len(embeddings):  25
len(node_id_mapping_list):  25
Qdrant ingestion complete