Implement Version-Aware Indexing Strategy

[muralov]

Description:

Implement a version-aware indexing strategy for Kyma documentation to handle versioned content effectively. This involves preprocessing documentation for each version, splitting documents into chunks, and adding version metadata to each chunk. Ensure that the indexing job can manage multiple versions simultaneously and provide accurate documentation retrieval based on the specific version of the Kyma modules installed by the end user.

Reasons
Chatbot needs to give response for a Kyma module version installed.

[Teneroy]

Think about it, might be good idea for a spike