Updated changelog with new release version release date. (#37684)

Co-authored-by: Dina Saparbaeva (from Dev Box) <[email protected]>

Author: dinazavyr

sdk/communication/azure-communication-sms/CHANGELOG.md

@@ -1,12 +1,6 @@
 # Release History
 
-## 1.1.0 (Unreleased)
-
-### Features Added
-
-### Breaking Changes
-
-### Bugs Fixed
+## 1.1.0 (2024-10-02)
 
 ### Other Changes
 - Python 2.7 is no longer supported. Please use Python version 3.7 or later. For more details, please read our page on [Azure SDK for Python version support policy](https://github.com/Azure/azure-sdk-for-python/wiki/Azure-SDKs-Python-version-support-policy).