Update HelloBedrockRuntime.cs

Author: rlhagerm

dotnetv3/Bedrock-runtime/Actions/HelloBedrockRuntime.cs

@@ -28,7 +28,8 @@ private static async Task Invoke(string modelId, string prompt)
                 default:
                     Console.WriteLine($"Unknown model ID: {modelId}. Valid model IDs are: {CLAUDE}.");
                     break;
-            };
+            }
+            ;
         }
     }
 }