use taskgraph in triangle example

Author: CptPotato

Cargo.lock

@@ -16,6 +16,7 @@ doc = false
 vulkano = { workspace = true, default-features = true }
 # Provides the `shader!` macro that is used to generate code for using shaders.
 vulkano-shaders = { workspace = true }
+vulkano-taskgraph = { workspace = true }
 # The Vulkan library doesn't provide any functionality to create and handle windows, as
 # this would be out of scope. In order to open a window, we are going to use the `winit` crate.
 winit = { workspace = true, default-features = true }