topic (iac): [foundry] update Azure OpenAI model from gpt-4o to gpt-4.1 (#74)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: ferantivero

README.md

@@ -60,7 +60,7 @@ Follow these instructions to deploy this example to your Azure subscription, try
   - The subscription must have the following quota available in the region you choose.
 
     - App Service Plans: P1v3 (AZ), 3 instances
-    - OpenAI model: GPT-4o model deployment with 50k tokens per minute (TPM) capacity
+    - OpenAI model: GPT-4.1 model deployment with 50k tokens per minute (TPM) capacity
 
 - Your deployment user must have the following permissions at the subscription scope.
 

infra-as-code/bicep/ai-foundry.bicep

@@ -69,8 +69,8 @@ resource foundry 'Microsoft.CognitiveServices/accounts@2025-06-01' = {
     properties: {
       model: {
         format: 'OpenAI'
-        name: 'gpt-4o'
-        version: '2024-11-20'  // Use a model version available in your region.
+        name: 'gpt-4.1'
+        version: '2025-04-14'  // Use a model version available in your region.
       }
       versionUpgradeOption: 'NoAutoUpgrade' // Production deployments should not auto-upgrade models.  Testing compatibility is important.
     }