deps(deps): bump azure-search-documents from 11.6.0b3 to 11.6.0b4

Bumps [azure-search-documents](https://github.com/Azure/azure-sdk-for-python) from 11.6.0b3 to 11.6.0b4.
- [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_11.6.0b3...azure-search-documents_11.6.0b4)

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

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

text2sql/requirements.txt

@@ -1,6 +1,6 @@
 semantic-kernel==1.8.0
 azure-search
-azure-search-documents==11.6.0b3
+azure-search-documents==11.6.0b4
 aioodbc
 azure-identity
 python-dotenv