Crash on exit when using the Vulkan backend

[vmarcella]

When testing any of the demos/examples utilizing the Vulkan backend & Windows platform, lambda applications crashes upon exiting with a STATUS_ACCESS_VIOLATION.

To reproduce, run the command cargo run --example push_constants --features lambda-platform/gfx-with-vulkan and exit the demo utilizing the window close button. This will trigger the GPU resource deallocation code & subsequently the access violation right after the surface starts to be deallocated.