Updated reference images for gfx tests

TestProjects/HDRP_Tests/Assets/ReferenceImages/Linear/WindowsEditor/Direct3D11/1101_Unlit.png.meta

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TestProjects/HDRP_Tests/Assets/ReferenceImages/Linear/WindowsEditor/Direct3D11/1103_Unlit_Distortion_DepthTest.png.meta

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TestProjects/HDRP_Tests/Assets/ReferenceImages/Linear/WindowsEditor/Direct3D11/1205_Lit_Transparent_Refraction.png.meta

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