Update to testcontainers 1.6 API

OhmGraphite.Test/GraphiteTest.cs

@@ -1,9 +1,8 @@
 using System;
 using System.Net.Http;
 using System.Threading;
-using DotNet.Testcontainers.Containers.Builders;
-using DotNet.Testcontainers.Containers.Modules;
-using DotNet.Testcontainers.Containers.WaitStrategies;
+using DotNet.Testcontainers.Builders;
+using DotNet.Testcontainers.Containers;
 using Xunit;
 
 namespace OhmGraphite.Test

OhmGraphite.Test/InfluxTest.cs

@@ -4,9 +4,8 @@ using System.Linq;
 using System.Net;
 using System.Net.Http;
 using System.Threading;
-using DotNet.Testcontainers.Containers.Builders;
-using DotNet.Testcontainers.Containers.Modules;
-using DotNet.Testcontainers.Containers.WaitStrategies;
+using DotNet.Testcontainers.Builders;
+using DotNet.Testcontainers.Containers;
 using InfluxDB.Client;
 using Xunit;
 

OhmGraphite.Test/TimescaleTest.cs

@@ -1,8 +1,6 @@
 using System;
-using DotNet.Testcontainers.Containers.Builders;
-using DotNet.Testcontainers.Containers.Modules;
-using DotNet.Testcontainers.Containers.WaitStrategies;
-using DotNet.Testcontainers.Images.Builders;
+using DotNet.Testcontainers.Builders;
+using DotNet.Testcontainers.Containers;
 using Npgsql;
 using Xunit;