[Bug]: NLP2SQL_using_dynamic_RAG.ipynb generation broken in several places

### File Name

generative-ai/gemini/use-cases/retrieval-augmented-generation /NLP2SQL_using_dynamic_RAG.ipynb

### What happened?

Cell 6:
NotFound: 404 Publisher Model `publishers/google/models/text-embedding-005-multilingual@001` is not found.

Cell 7:
FileNotFoundError: [Errno 2] No such file or directory: 'queries_sample_knowledge_base.csv'

The notebook is effectively unusable.

### Relevant log output

```shell

```

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