add kv to terraform sample of aci sample app #211

Job	Run time
Build Test Matrix	6s
Test: web-app-managed-identity/python/scripts	4m 45s
Test: function-app-front-door/python/scripts	10m 46s
Test: function-app-service-bus/dotnet/scripts	7m 56s
Test: function-app-storage-http/dotnet/terraform	7m 14s
Test: servicebus/java/scripts	3m 31s
Test: function-app-managed-identity/python/scripts	5m 42s
Test: function-app-managed-identity/python/terraform	6m 41s
Test: function-app-storage-http/dotnet/scripts	5m 22s
Test: function-app-service-bus/dotnet/terraform	8m 15s
Test: web-app-cosmosdb-mongodb-api/python/scripts	5m 40s
Test: web-app-sql-database/python/scripts	4m 55s
Test: web-app-managed-identity/python/terraform	6m 33s
Test: aci-blob-storage/python/scripts	3m 49s
Test: web-app-cosmosdb-mongodb-api/python/terraform	5m 57s
Test: aci-blob-storage/python/terraform	5m 56s
Test: function-app-storage-http/dotnet/bicep	8m 24s
Test: function-app-managed-identity/python/bicep	5m 56s
Test: web-app-managed-identity/python/bicep	4m 58s
Test: function-app-service-bus/dotnet/bicep	7m 46s
Test: web-app-sql-database/python/terraform	7m 16s
Test: web-app-cosmosdb-mongodb-api/python/bicep	7m 9s
Test: servicebus/java/terraform	4m 13s
Test: aci-blob-storage/python/bicep	4m 25s
Test: servicebus/java/bicep	4m 30s
	2h 27m 45s

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