fix(core-tests): 修复 AsyncKeyLockManagerTests 的 MA0004 warning

- 修复 Task.Run 内 await using 的异步释放上下文捕获 warning
- 保持 AsyncKeyLockManager 并发测试语义与可读性不变

GFramework.Core.Tests/Architectures/ArchitectureModulesBehaviorTests.cs

@@ -176,6 +176,6 @@ public sealed class TrackingPipelineBehavior<TRequest, TResponse> : IPipelineBeh
         CancellationToken cancellationToken)
     {
         InvocationCount++;
-        return await next(message, cancellationToken);
+        return await next(message, cancellationToken).ConfigureAwait(false);
     }
 }

GFramework.Core.Tests/Extensions/AsyncExtensionsTests.cs

@@ -227,12 +227,17 @@ public class AsyncExtensionsTests
     [Test]
     public async Task WithRetry_Should_Respect_ShouldRetry_Predicate()
     {
+        static Task<int> ThrowShouldNotRetry(string parameterName)
+        {
+            throw new ArgumentException("Should not retry", nameof(parameterName));
+        }
+
         // Arrange
         var attemptCount = 0;
         Func<Task<int>> taskFactory = () =>
         {
             attemptCount++;
-            throw new ArgumentException("Should not retry");
+            return ThrowShouldNotRetry(nameof(taskFactory));
         };
 
         // Act & Assert