feat: adding an `HybridRetriever` as a `Supercomponent` having `OpenSearch` as the document store

[davidsbatista]

Related Issues

• fixes #9210

Proposed Changes:

• adding an HybridRetriever as a SuperComponent, having OpenSearch as the document store and SentenceTransformTextEmbedder as the embedder

How did you test it?

• unit tests + manual tests

Notes for the reviewer

• Need to wait for the upcoming haystack release which contains the TextEmbedder Protocol

Checklist

• I have read the contributors guidelines and the code of conduct
• I have updated the related issue with new insights and changes
• I added unit tests and updated the docstrings
• I've used one of the conventional commit types for my PR title: fix:, feat:, build:, chore:, ci:, docs:, style:, refactor:, perf:, test:.

[davidsbatista]

For the tests to pass, we will have to wait for a new release of haystack with the TextEmbedder protocol.

But @sjrl feel free to give a second review

[sjrl]

@davidsbatista a few remaining comments, otherwise looks good!