Bump langchain-core

Bumps [langchain-core](https://github.com/langchain-ai/langchain) from 0.3.59 to 0.3.80.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-core==0.3.59...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]

ai/generative-ai-service/Document Processing with GenAI/smart-invoice-extraction/requirements.txt

@@ -1,7 +1,7 @@
 json==2.0.9
 Pillow==10.3.0
 langchain_community==0.3.24
-langchain_core==0.3.59
+langchain_core==0.3.80
 pandas==2.2.3
 pdf2image==1.17.0
 streamlit==1.41.0