Bump streamlit from 1.55.0 to 1.56.0 (#396)

Bumps [streamlit](https://github.com/streamlit/streamlit) from 1.55.0 to 1.56.0.
- [Release notes](https://github.com/streamlit/streamlit/releases)
- [Commits](streamlit/streamlit@1.55.0...1.56.0)

---
updated-dependencies:
- dependency-name: streamlit
  dependency-version: 1.56.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

AI-Travel-Agent/requirements.txt

@@ -3,7 +3,7 @@ ipykernel==7.2.0
 jupyter==1.1.1
 langchain==1.2.15
 langchain-community==0.4.1
-streamlit==1.55.0
+streamlit==1.56.0
 huggingface-hub==1.9.0
 pydantic==2.12.5
 wikipedia==1.4.0