[RELEASE] 1.6.0 (#7907)

## Description of changes

Bug fix release

## Test plan

CI + process

## Migration plan

Backwards compat.

## Observability plan

Monitor the community.

## Documentation Changes

N/A

Author: rescrv

chromadb/__init__.py

@@ -1,6 +1,6 @@
 from typing import Dict, Optional, Union
 
-__version__ = "1.5.9"
+__version__ = "1.6.0"
 
 import logging
 from chromadb.api.client import Client as ClientCreator