Bump langchain-core from 0.3.60 to 0.3.80 in /EdgeCraftRAG/edgecraftrag

Bumps [langchain-core](https://github.com/langchain-ai/langchain) from 0.3.60 to 0.3.80.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-core==0.3.60...langchain-core==0.3.80)

---
updated-dependencies:
- dependency-name: langchain-core
  dependency-version: 0.3.80
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

EdgeCraftRAG/edgecraftrag/requirements.txt

@@ -3,7 +3,7 @@ EbookLib>=0.18
 faiss-cpu>=1.8.0.post1
 html2text>=2025.4.15
 json-repair==0.52.0
-langchain-core==0.3.79
+langchain-core==0.3.80
 langchain-milvus
 langchain-openai
 langgraph==0.6.10