build: bump azure-search-documents

Bumps [azure-search-documents](https://github.com/Azure/azure-sdk-for-python) from 11.4.0 to 11.5.2.
- [Release notes](https://github.com/Azure/azure-sdk-for-python/releases)
- [Changelog](https://github.com/Azure/azure-sdk-for-python/blob/main/sdk/search/azure-search-documents/CHANGELOG.md)
- [Commits](Azure/azure-sdk-for-python@azure-search-documents_11.4.0...azure_search_documents_11.5.2)

---
updated-dependencies:
- dependency-name: azure-search-documents
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

ResearchAssistant/Deployment/scripts/index_scripts/requirements.txt

@@ -5,6 +5,6 @@ pypdf
 # tiktoken
 azure-identity
 azure-ai-textanalytics
-azure-search-documents==11.4.0
+azure-search-documents==11.5.2
 azure-keyvault-secrets
 pandas