Merge pull request #3879 from open-webui/dependabot/pip/backend/dev/chromadb-0.5.4

chore(deps): bump chromadb from 0.5.3 to 0.5.4 in /backend

backend/requirements.txt

@@ -38,7 +38,7 @@ langchain-community==0.2.6
 langchain-chroma==0.1.2
 
 fake-useragent==1.5.1
-chromadb==0.5.3
+chromadb==0.5.4
 sentence-transformers==3.0.1
 pypdf==4.2.0
 docx2txt==0.8