[Testbed] Temporarily disable multi-threading test for D3D12 as state… #476

Job	Run time
build_windows (Visual Studio 17 2022, x64, Shared, Release)	6m 1s
build_windows (Visual Studio 17 2022, x64, Shared, Debug)	4m 48s
build_windows (Visual Studio 17 2022, x64, Static, Release)	5m 20s
build_windows (Visual Studio 17 2022, x64, Static, Debug)	5m 6s
build_windows (Visual Studio 17 2022, Win32, Shared, Release)	6m 27s
build_windows (Visual Studio 17 2022, Win32, Shared, Debug)	5m 30s
build_windows (Visual Studio 17 2022, Win32, Static, Release)	6m 0s
build_windows (Visual Studio 17 2022, Win32, Static, Debug)	5m 37s
build_windows (Visual Studio 16 2019, x64, Shared, Release)	4m 17s
build_windows (Visual Studio 16 2019, x64, Shared, Debug)	4m 28s
build_windows (Visual Studio 16 2019, x64, Static, Release)	4m 25s
build_windows (Visual Studio 16 2019, x64, Static, Debug)	4m 47s
build_windows (Visual Studio 16 2019, Win32, Shared, Release)	4m 48s
build_windows (Visual Studio 16 2019, Win32, Shared, Debug)	4m 30s
build_windows (Visual Studio 16 2019, Win32, Static, Release)	5m 2s
build_windows (Visual Studio 16 2019, Win32, Static, Debug)	4m 30s
	1h 21m 36s

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