fix incorrect entity name

Author: sebastianburckhardt

samples/DtsPortableSdkEntityTests/tests/TwoCriticalSections.cs

@@ -49,13 +49,13 @@ public override async Task<string> RunAsync(TaskOrchestrationContext context, st
             string key1 = entityKeys![0];
             string key2 = entityKeys![1];
 
-            await using (await context.Entities.LockEntitiesAsync([new EntityInstanceId("CounterEntity", key1)]))
+            await using (await context.Entities.LockEntitiesAsync([new EntityInstanceId(nameof(Counter), key1)]))
             {
-                await context.Entities.CallEntityAsync(new EntityInstanceId("CounterEntity", key1), "add", 1);
+                await context.Entities.CallEntityAsync(new EntityInstanceId(nameof(Counter), key1), "add", 1);
             }
-            await using (await context.Entities.LockEntitiesAsync([new EntityInstanceId("CounterEntity", key2)]))
+            await using (await context.Entities.LockEntitiesAsync([new EntityInstanceId(nameof(Counter), key2)]))
             {
-                await context.Entities.CallEntityAsync(new EntityInstanceId("CounterEntity", key2), "add", 1);
+                await context.Entities.CallEntityAsync(new EntityInstanceId(nameof(Counter), key2), "add", 1);
             }
 
             return "ok";