Bump langchain-openai from 0.3.12 to 0.3.15 (#100)

Bumps [langchain-openai](https://github.com/langchain-ai/langchain) from 0.3.12 to 0.3.15. - [Release notes](https://github.com/langchain-ai/langchain/releases) - [Commits](langchain-ai/langchain@langchain-openai==0.3.12...langchain-openai==0.3.15) --- updated-dependencies: - dependency-name: langchain-openai dependency-version: 0.3.15 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements.txt

@@ -1,7 +1,7 @@
 beautifulsoup4==4.13.3
 langchain-couchbase==0.2.4
 langchain-community==0.3.21
-langchain-openai==0.3.12
+langchain-openai==0.3.15
 langsmith==0.3.24
 python-dotenv==1.1.0
 streamlit==1.44.0