RAGAs compatibility with GISKARD

[aranchod490]

Currently trying to evaluate a RAG pipeline using generated tests using GISKARD and further integrating RAGAs metrics. However, after going through the documentation of GISKARD and implementation an error reading

Package ragas.llms.prompt is missing, it is required for the computation of RAGAS metrics. You can install it with pip install ragas.llms.prompt.

however, ragas.llms.prompt does not exist