Include Solr9 vector search in the benchmark

[vedina]

https://solr.apache.org/guide/solr/latest/query-guide/dense-vector-search.html

new HNSW implementation in Solr9

[erikbern]

cool, might be worth adding!

[benwtrent]

Hey @vedina is there a reason why the existing Lucene benchmark doesn't provide the necessary information?

I would image Solr (like Elasticsearch) has network communication overhead.

Lucene is nearing around a 1/5th-1/7th a millisecond per query served. At these latency numbers I would expect network serialization overhead to wash out any algorithmic improvements or changes.