build(deps): bump langchain-core in /apps/langgraph_agent_with_genai/src

Bumps [langchain-core](https://github.com/langchain-ai/langchain) from 1.2.19 to 1.2.22.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-core==1.2.19...langchain-core==1.2.22)

---
updated-dependencies:
- dependency-name: langchain-core
  dependency-version: 1.2.22
  dependency-type: direct:production
...

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

Author: dependabot[bot]

apps/langgraph_agent_with_genai/src/requirements.txt

@@ -12,7 +12,7 @@ oracledb==3.4.2
 poppler-utils==0.1.0
 langchain==1.2.12
 langchain-community==0.4.1
-langchain-core==1.2.19
+langchain-core==1.2.22
 langsmith==0.7.18
 langgraph==1.1.2
 langchain-oci==0.2.5