restore own solution: requirements.txt

requirements.txt

@@ -1,6 +1,5 @@
-langchain>=1.0.0
+langchain>=1.2.10
 langchain-ollama>=0.3.0
-langchain-qdrant>=0.2.0
+langchain-qdrant>=0.2.1
 langchain-text-splitters>=0.3.0
 qdrant-client>=1.9.0
-python-dotenv>=1.0.0