fix(core-tests): 修复 PauseStackManagerTests 锁分析器警告

- 修复 PauseStackManagerTests 并发测试中的锁声明，针对 net9 以上使用专用 Lock。

- 保持 net8.0 回退到 object 锁，确保多目标兼容且测试行为不变。

GFramework.Core.Tests/Concurrency/AsyncKeyLockManagerTests.cs

@@ -47,9 +47,11 @@ public sealed class AsyncKeyLockManagerTests
             var index = i;
             tasks.Add(Task.Run(async () =>
             {
-                await using var handle = await manager.AcquireLockAsync("same-key").ConfigureAwait(false);
+                await using ((await manager.AcquireLockAsync("same-key").ConfigureAwait(false)).ConfigureAwait(false))
+                {
                     executionOrder.Add(index);
                     await Task.Delay(10).ConfigureAwait(false);
+                }
             }));
         }
 
@@ -75,11 +77,13 @@ public sealed class AsyncKeyLockManagerTests
             var key = $"key-{i}";
             tasks.Add(Task.Run(async () =>
             {
-                await using var handle = await manager.AcquireLockAsync(key).ConfigureAwait(false);
+                await using ((await manager.AcquireLockAsync(key).ConfigureAwait(false)).ConfigureAwait(false))
+                {
                     var current = Interlocked.Increment(ref concurrentCount);
                     maxConcurrent = Math.Max(maxConcurrent, current);
                     await Task.Delay(50).ConfigureAwait(false);
                     Interlocked.Decrement(ref concurrentCount);
+                }
             }));
         }
 
@@ -117,8 +121,10 @@ public sealed class AsyncKeyLockManagerTests
             var key = $"key-{i % 10}";
             tasks.Add(Task.Run(async () =>
             {
-                await using var handle = await manager.AcquireLockAsync(key).ConfigureAwait(false);
+                await using ((await manager.AcquireLockAsync(key).ConfigureAwait(false)).ConfigureAwait(false))
+                {
                     await Task.Delay(1).ConfigureAwait(false);
+                }
             }));
         }
 
@@ -139,10 +145,12 @@ public sealed class AsyncKeyLockManagerTests
         {
             tasks.Add(Task.Run(async () =>
             {
-                await using var handle = await manager.AcquireLockAsync("same-key").ConfigureAwait(false);
+                await using ((await manager.AcquireLockAsync("same-key").ConfigureAwait(false)).ConfigureAwait(false))
+                {
                     var temp = counter;
                     await Task.Delay(1).ConfigureAwait(false);
                     counter = temp + 1;
+                }
             }));
         }
 
@@ -295,9 +303,11 @@ public sealed class AsyncKeyLockManagerTests
             {
                 for (var j = 0; j < 10; j++)
                 {
-                    await using var handle = await manager.AcquireLockAsync($"key-{j % 5}").ConfigureAwait(false);
+                    await using ((await manager.AcquireLockAsync($"key-{j % 5}").ConfigureAwait(false)).ConfigureAwait(false))
+                    {
                         await Task.Delay(10).ConfigureAwait(false);
                     }
+                }
             }));
         }
 

GFramework.Core.Tests/Pause/PauseStackManagerTests.cs

@@ -431,7 +431,11 @@ public class PauseStackManagerTests
     {
         var tasks = new List<Task>();
         var tokens = new List<PauseToken>();
+#if NET9_0_OR_GREATER
+        var lockObj = new System.Threading.Lock();
+#else
         var lockObj = new object();
+#endif
 
         for (int i = 0; i < 100; i++)
         {