chore: colbert-ai requirement

backend/requirements.txt

@@ -43,6 +43,8 @@ chromadb==0.5.5
 pymilvus==2.4.6
 
 sentence-transformers==3.0.1
+colbert-ai==0.2.21
+
 pypdf==4.3.1
 docx2txt==0.8
 python-pptx==1.0.0

pyproject.toml

@@ -48,7 +48,10 @@ dependencies = [
     "fake-useragent==1.5.1",
     "chromadb==0.5.5",
     "pymilvus==2.4.6",
+
     "sentence-transformers==3.0.1",
+    "colbert-ai==0.2.21",
+    
     "pypdf==4.3.1",
     "docx2txt==0.8",
     "python-pptx==1.0.0",