deprecate Connection

Author: sbSteveK

awscrt/mqtt.py

@@ -243,8 +243,22 @@ class OperationStatisticsData:
     unacked_operation_size: int = 0
 
 
+@deprecated(
+    """
+    Deprecated tag: Please use MQTT5 Client for new code. There are no current plans to
+    fully deprecate the MQTT 3.1.1 client but it is highly recommended customers migrate
+    to the MQTT5 Client to have access to a more robust feature set, clearer error handling, and lifetime
+    management. More details can be found here: <URL>
+    """,
+    since="9.9.9")
 class Connection(NativeResource):
-    """MQTT client connection.
+    """
+    Deprecated Definition. Please use MQTT5 Client for new code. There are no current plans to
+    fully deprecate the MQTT 3.1.1 client but it is highly recommended customers migrate
+    to the MQTT5 Client to have access to a more robust feature set, clearer error handling, and lifetime
+    management. More details can be found here: <URL>
+    
+    MQTT client connection.
 
     Args:
         client (Client): MQTT client to spawn connection from.