chore(deps-dev): bump llamaindex in /packages/instrumentation-llamaindex

Bumps [llamaindex](https://github.com/run-llama/LlamaIndexTS/tree/HEAD/packages/llamaindex) from 0.1.21 to 0.5.20.
- [Release notes](https://github.com/run-llama/LlamaIndexTS/releases)
- [Changelog](https://github.com/run-llama/LlamaIndexTS/blob/main/packages/llamaindex/CHANGELOG.md)
- [Commits](https://github.com/run-llama/LlamaIndexTS/commits/llamaindex@0.5.20/packages/llamaindex)

---
updated-dependencies:
- dependency-name: llamaindex
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

packages/instrumentation-llamaindex/package.json

@@ -49,7 +49,7 @@
     "@pollyjs/core": "^6.0.6",
     "@pollyjs/persister-fs": "^6.0.6",
     "@types/mocha": "^10.0.6",
-    "llamaindex": "^0.1.16",
+    "llamaindex": "^0.5.20",
     "ts-mocha": "^10.0.0"
   },
   "homepage": "https://github.com/traceloop/openllmetry-js/tree/main/packages/instrumentation-llamaindex",