Update foundry hosting samples

python/samples/04-hosting/foundry-hosted-agents/invocations/01_basic/main.py

@@ -5,7 +5,7 @@ import os
 from agent_framework import Agent
 from agent_framework.foundry import FoundryChatClient
 from agent_framework_foundry_hosting import InvocationsHostServer
-from azure.identity import AzureCliCredential
+from azure.identity import DefaultAzureCredential
 from dotenv import load_dotenv
 
 # Load environment variables from .env file
@@ -15,8 +15,8 @@ load_dotenv()
 def main():
     client = FoundryChatClient(
         project_endpoint=os.environ["FOUNDRY_PROJECT_ENDPOINT"],
-        model=os.environ["MODEL_DEPLOYMENT_NAME"],
-        credential=AzureCliCredential(),
+        model=os.environ["AZURE_AI_MODEL_DEPLOYMENT_NAME"],
+        credential=DefaultAzureCredential(),
     )
 
     agent = Agent(