chore(deps): Bump llama-index from 0.11.7 to 0.11.9 in /examples/chainlit (#3567)

chore(deps): Bump llama-index in /examples/chainlit

Bumps [llama-index](https://github.com/run-llama/llama_index) from 0.11.7 to 0.11.9.
- [Release notes](https://github.com/run-llama/llama_index/releases)
- [Changelog](https://github.com/run-llama/llama_index/blob/main/CHANGELOG.md)
- [Commits](https://github.com/run-llama/llama_index/compare/v0.11.7...v0.11.9)

---
updated-dependencies:
- dependency-name: llama-index
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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