docs: update changelog for integrations/chroma (#1652)

* Update changelog for integrations/chroma

* Update CHANGELOG.md

---------

Co-authored-by: anakin87 <44616784+anakin87@users.noreply.github.com>
Co-authored-by: Stefano Fiorucci <stefanofiorucci@gmail.com>

Author: HaystackBot

integrations/chroma/CHANGELOG.md

@@ -1,6 +1,6 @@
 # Changelog
 
-## [integrations/chroma-v2.0.3] - 2025-04-04
+## [integrations/chroma-v3.1.0] - 2025-04-14
 
 ### 🐛 Bug Fixes