Fix #145667: Nearest interpolation is ignored in Vulkan

Blender compositor ignores nearest interpolation in Vulkan backend.
That's because anisotropic interpolation is used based on same left over
sampler state. To fix this, we clear anisotropic sampling in the
realization shader.

Pull Request: https://projects.blender.org/blender/blender/pulls/145905

source/blender/compositor/intern/realize_on_domain_operation.cc

@@ -98,6 +98,7 @@ void RealizeOnDomainOperation::realize_on_domain_gpu(const float3x3 &inverse_tra
   const bool use_bilinear = ELEM(
       realization_options.interpolation, Interpolation::Bilinear, Interpolation::Bicubic);
   GPU_texture_filter_mode(input, use_bilinear);
+  GPU_texture_anisotropic_filter(input, false);
 
   GPU_texture_extend_mode_x(input,
                             map_extension_mode_to_extend_mode(realization_options.extension_x));