Updated the manual configuration examples in the following docs to show
the correct usage of the inner builder class:
- azure.adoc: Show builder(searchIndexClient, embeddingModel) with all available options
- chroma.adoc: Show builder(chromaApi, embeddingModel) with collection config
- oracle.adoc: Show builder(jdbcTemplate, embeddingModel) with database options
The examples now reflect the current implementation where the builder takes
both the client and embedding model as constructor arguments.