build(deps): bump llama-index-vector-stores-chroma from 0.5.5 to 0.6.0

Bumps llama-index-vector-stores-chroma from 0.5.5 to 0.6.0.

---
updated-dependencies:
- dependency-name: llama-index-vector-stores-chroma
  dependency-version: 0.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements-rag.txt

@@ -4,7 +4,7 @@ httpx==0.28.1
 llama-index==0.14.24
 llama-index-embeddings-openai==0.6.0
 llama-index-llms-openai==0.7.10
-llama-index-vector-stores-chroma==0.5.5
+llama-index-vector-stores-chroma==0.6.0
 chromadb==1.5.9
 pydantic==2.13.4
 python-dotenv==1.0.1