Add spring retirement info (#8652)

Author: yuwzho

src/spring/HISTORY.md

@@ -1,5 +1,9 @@
 Release History
 ===============
+1.28.0
+---
+* Add Azure Spring Apps retirement information. See https://aka.ms/asaretirement. 
+
 1.27.1
 ---
 * Support scenario of bringing your own container image for command `az spring export`.

src/spring/azext_spring/_breaking_change.py

@@ -0,0 +1,9 @@
+# --------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# --------------------------------------------------------------------------------------------
+
+from azure.cli.core.breaking_change import register_command_group_deprecate
+
+# https://aka.ms/asaretirement
+register_command_group_deprecate('spring', target_version='Mar 2028', hide=True)

src/spring/setup.py

@@ -16,7 +16,7 @@
 
 # TODO: Confirm this is the right version number you want and it matches your
 # HISTORY.rst entry.
-VERSION = '1.27.1'
+VERSION = '1.28.0'
 
 # The full list of classifiers is available at
 # https://pypi.python.org/pypi?%3Aaction=list_classifiers