[Synapse] Generate Azure.Analytics.Synapse.Artifacts preview.11 (Azure#24316)

* initial commit

* update changelog

* update api listing

* Fix compilation errors

* [Synapse] - refresh session records

* Update changelog

* Add nullable annotation for folder

Co-authored-by: Dongwei Wang <dongwwa@microsoft.com>

Author: annelo-msft

sdk/synapse/Azure.Analytics.Synapse.Artifacts/CHANGELOG.md

@@ -1,7 +1,11 @@
 # Release History
 
-## 1.0.0-preview.11 (Unreleased)
-
+## 1.0.0-preview.11 (2021-10-05)
+- Upgrade to [package-artifacts-composite-v1](https://github.com/Azure/azure-rest-api-specs/blob/bee724836ffdeb5458274037dc75f4d43576b5e3/specification/synapse/data-plane/readme.md#tag-package-artifacts-composite-v1)
+- Added `SparkConfigurationClient`, `KqlScriptsClient` and associated support types.
+- Update type of many modles from string to object
+- `SparkJobDefinition`, `Notebook` and `SqlScript` now has a folder property
+- `SqlScript` now has poolName and databaseName properties
 
 ## 1.0.0-preview.10 (2021-05-13)
 ### Key Bug Fixes