add e2e tests

demos/function_calling/arch_config.yaml

@@ -16,12 +16,27 @@ overrides:
   prompt_target_intent_matching_threshold: 0.6
 
 llm_providers:
-  - name: gpt
+  - name: gpt-4o-mini
     access_key: $OPENAI_API_KEY
     provider: openai
-    model: gpt-3.5-turbo
+    model: gpt-4o-mini
     default: true
 
+  - name: gpt-3.5-turbo-0125
+    access_key: $OPENAI_API_KEY
+    provider: openai
+    model: gpt-3.5-turbo-0125
+
+  - name: gpt-4o
+    access_key: $OPENAI_API_KEY
+    provider: openai
+    model: gpt-4o
+
+  - name: ministral-3b
+    access_key: $MISTRAL_API_KEY
+    provider: mistral
+    model: ministral-3b-latest
+
 system_prompt: |
   You are a helpful assistant.