Bump langchain-classic from 1.0.1 to 1.0.3

Bumps [langchain-classic](https://github.com/langchain-ai/langchain) from 1.0.1 to 1.0.3.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-classic==1.0.1...langchain-classic==1.0.3)

---
updated-dependencies:
- dependency-name: langchain-classic
  dependency-version: 1.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -1,5 +1,5 @@
 beautifulsoup4==4.14.3
-langchain-classic==1.0.1
+langchain-classic==1.0.3
 langchain-couchbase==1.0.1
 langchain-community==0.4.1
 langchain-openai==1.1.10