fix(batch57): add missing constructors to SuperCluster and LeafNode test classes

dotnet/tests/ZB.MOM.NatsNet.Server.IntegrationTests/LeafNode/LeafNodeTests.cs

@@ -29,6 +29,8 @@ namespace ZB.MOM.NatsNet.Server.IntegrationTests.LeafNode;
 [Trait("Category", "Integration")]
 public sealed class LeafNodeTests : IntegrationTestBase
 {
+    public LeafNodeTests(ITestOutputHelper output) : base(output) { }
+
     /// <summary>
     /// Verifies that when a leaf-node remote URL resolves to multiple IP addresses
     /// the server randomly cycles through them, ensuring all IPs are eventually used.