[SYCL] Disable SchedulerTest/StreamBufferDeallocation on Windows (#15050)

Failing on Windows

#15049

Signed-off-by: Sarnie, Nick <[email protected]>

Author: sarnex

sycl/unittests/scheduler/GraphCleanup.cpp

@@ -307,7 +307,12 @@ struct AttachSchedulerWrapper {
 };
 
 // Check that stream buffers are released alongside graph cleanup.
+// https://github.com/intel/llvm/issues/15049
+#ifdef _WIN32
+TEST_F(SchedulerTest, DISABLED_StreamBufferDeallocation) {
+#else
 TEST_F(SchedulerTest, StreamBufferDeallocation) {
+#endif
   unittest::UrMock<> Mock;
   platform Plt = sycl::platform();
   context Ctx{Plt};