Merge pull request #1202 from berndverst/master

Support managed identity & container instances in conf test infra

Author: daixiang0

.github/infrastructure/conformance/azure/conf-test-azure-iothub.bicep

@@ -16,7 +16,7 @@ resource iotHub 'Microsoft.Devices/IotHubs@2021-03-31' = {
   tags: confTestTags
   sku: {
       capacity: 1
-      name: 'F1'
+      name: 'S1'
   }
   properties: {
     eventHubEndpoints: {