[Bug]: Reduce logging levels to debug for implementation details

[jlowin]

What happened?

If you query a collection that has fewer items than the number of items you requested, you get a WARNING-level log, which is kind of scary for the behavior:

10:01:26.794 | WARNING | chromadb.segment.impl.vector.local_hnsw - Number of requested results 10 is greater than number of elements in index 1, updating n_results = 1

The log is defined here. Usually, a WARNING log means "Something unexpected happened, and things don't seem to be broken, but they might be." (e.g. not INFO but not yet an ERROR).

I recognize this is a bit subjective, which is why I'm opening an issue rather than a PR, but to me this is a debug log at best. As a user, the fact that I'm only going to get one result from a collection that contains one item is hardly surprising and not something I expected to be "warned" about.

Versions

Chroma 0.5.7

Relevant log output

No response