Remove thread safety test from ConcurrentBumpAllocatorTests since Reset is not thread safe

The ThreadSafety_ConcurrentResetAndAlloc_NoCorruption test,
which verified concurrent allocation and reset behavior, has
been removed. The rest of the test suite remains unchanged.

Author: JunaMeinhold

Hexa.NET.Utilities.Tests/ConcurrentBumpAllocatorTests.cs

@@ -358,70 +358,6 @@ public void ThreadSafety_ConcurrentAllocationsWithDifferentSizes_NoMemoryOverlap
             allocator.Dispose();
         }
 
-        [Test]
-        public void ThreadSafety_ConcurrentResetAndAlloc_NoCorruption()
-        {
-            // Arrange
-            var allocator = new ConcurrentBumpAllocator();
-            const int duration = 1000; // milliseconds
-            var cts = new CancellationTokenSource();
-            var exceptions = new List<Exception>();
-
-            // Act - One thread continuously allocates, another resets periodically
-            var allocTask = Task.Run(() =>
-            {
-                try
-                {
-                    while (!cts.Token.IsCancellationRequested)
-                    {
-                        void* ptr = allocator.Alloc(64);
-                        if (ptr != null)
-                        {
-                            // Write some data
-                            *(int*)ptr = 0x12345678;
-                        }
-                    }
-                }
-                catch (Exception ex)
-                {
-                    lock (exceptions)
-                    {
-                        exceptions.Add(ex);
-                    }
-                }
-            });
-
-            var resetTask = Task.Run(() =>
-            {
-                try
-                {
-                    while (!cts.Token.IsCancellationRequested)
-                    {
-                        Thread.Sleep(10);
-                        allocator.Reset();
-                    }
-                }
-                catch (Exception ex)
-                {
-                    lock (exceptions)
-                    {
-                        exceptions.Add(ex);
-                    }
-                }
-            });
-
-            Thread.Sleep(duration);
-            cts.Cancel();
-            Task.WaitAll(allocTask, resetTask);
-
-            // Assert - No exceptions should occur
-            Assert.That(exceptions, Is.Empty,
-                $"Exceptions occurred: {string.Join(", ", exceptions.Select(e => e.Message))}");
-
-            // Cleanup
-            allocator.Dispose();
-        }
-
         [Test]
         public void Alloc_SmallAllocations_FitsInSinglePage()
         {