Add version requirement for RBAC integration tests

Author: mpartipilo

src/Weaviate.Client.Tests/Integration/TestRbacGroups.cs

@@ -14,6 +14,11 @@ public class TestRbacGroups : IntegrationTests
     public override ushort GrpcPort => 50063;
     private const string ADMIN_API_KEY = "admin-key";
 
+    public TestRbacGroups()
+    {
+        RequireVersion("1.32.0");
+    }
+
     public override ICredentials? Credentials => Auth.ApiKey(ADMIN_API_KEY);
 
     [Fact, Trait("Category", "RBAC")]

src/Weaviate.Client.Tests/Integration/TestRbacRoles.cs

@@ -16,6 +16,11 @@ public class TestRbacRoles : IntegrationTests
     private static string MakeRoleName(string suffix) =>
         $"test-role-{suffix}-{Random.Shared.Next(1, 1_000_000)}";
 
+    public TestRbacRoles()
+    {
+        RequireVersion("1.30.0");
+    }
+
     [Fact, Trait("Category", "RBAC")]
     public async Task ListRoles()
     {

src/Weaviate.Client.Tests/Integration/TestRbacUsers.cs

@@ -18,7 +18,10 @@ public class TestRbacUsers : IntegrationTests
 
     public override ICredentials? Credentials => Auth.ApiKey(ADMIN_API_KEY);
 
-    // Base _weaviate already configured with overridden ports and credentials
+    public TestRbacUsers()
+    {
+        RequireVersion("1.30.0");
+    }
 
     [Fact, Trait("Category", "RBAC")]
     public async Task Test_OwnUser()