Prepare for switching the Azure default deployment from 3.5 to 4o-mini

Author: ccreutzi

tests/hopenAIChat.m

@@ -17,6 +17,7 @@
         constructor
         defaultModel
         visionModel
+        gpt35Model
     end
 
     methods(Test)
@@ -126,7 +127,7 @@ function doReturnErrors(testCase)
             % This input is considerably longer than accepted as input for
             % GPT-3.5 (16385 tokens)
             wayTooLong = string(repmat('a ',1,20000));
-            testCase.verifyError(@() generate(testCase.defaultModel,wayTooLong), "llms:apiReturnedError");
+            testCase.verifyError(@() generate(testCase.gpt35Model,wayTooLong), "llms:apiReturnedError");
         end
 
         function createChatWithStreamFunc(testCase)

tests/tazureChat.m

@@ -16,6 +16,7 @@
         defaultModel = azureChat;
         visionModel = azureChat(Deployment="gpt-4o");
         structuredModel = azureChat("Deployment","gpt-4o-2024-08-06");
+        gpt35Model = azureChat(DeploymentID="gpt-35-turbo-16k-0613");
     end
 
     methods(Test)

tests/topenAIChat.m

@@ -17,6 +17,7 @@
         visionModel = openAIChat;
         structuredModel = openAIChat;
         noStructuredOutputModel = openAIChat(ModelName="gpt-3.5-turbo");
+        gpt35Model = openAIChat(ModelName="gpt-3.5-turbo");
     end
 
     methods(Test)