[Tables] Prepare release (Azure#30693)

Author: Yalin Li

sdk/tables/azure-data-tables/CHANGELOG.md

@@ -1,10 +1,6 @@
 # Release History
 
-## 12.4.3 (Unreleased)
-
-### Features Added
-
-### Breaking Changes
+## 12.4.3 (2023-06-08)
 
 ### Bugs Fixed
 * Fixed a bug in getting error attribute values when operations failed. ([#27410](https://github.com/Azure/azure-sdk-for-python/issues/27410))