Bump langchain-text-splitters in /ai/gen-ai-agents/travel-agent/files

Bumps [langchain-text-splitters](https://github.com/langchain-ai/langchain) from 0.3.8 to 1.1.2.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-text-splitters==0.3.8...langchain-text-splitters==1.1.2)

---
updated-dependencies:
- dependency-name: langchain-text-splitters
  dependency-version: 1.1.2
  dependency-type: direct:production
...

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Author: dependabot[bot]

ai/gen-ai-agents/travel-agent/files/requirements.txt

@@ -75,7 +75,7 @@ lab==8.4
 langchain==0.3.25
 langchain-community==0.3.24
 langchain-core==0.3.80
-langchain-text-splitters==0.3.8
+langchain-text-splitters==1.1.2
 langgraph==0.4.5
 langgraph-checkpoint==3.0.0
 langgraph-prebuilt==0.1.8