Bump langchain

Bumps [langchain](https://github.com/langchain-ai/langchain) from 0.1.13 to 0.2.5.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-openai==0.1.13...langchain==0.2.5)

---
updated-dependencies:
- dependency-name: langchain
  dependency-version: 0.2.5
  dependency-type: direct:production
...

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

Author: dependabot[bot]

ai/generative-ai-service/Video-Image-Analysis-using-Langchain/requirements.txt

@@ -1,6 +1,6 @@
 streamlit==1.32.2
 opencv-python==4.9.0.80
-langchain==0.1.13
+langchain==0.2.5
 langchain-community==0.2.19
 langchain-core==0.1.32
 oracledb==1.4.0