Fixed integration test complaints.

library/phx/rendering/render_passes/blit_pass.cpp

@@ -89,6 +89,7 @@ void BlitPass::Execute() {
   }
 
   target->blit(*source_, 0, 0, source_size[0], source_size[1], 0, 0,
-               target_size[0], target_size[1], GL_COLOR_BUFFER_BIT, GL_LINEAR);
+               target_size[0], target_size[1],
+               GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT, GL_NEAREST);
 }
 }  // namespace phx