Update webgpu header

[almarklein]

Diff of the header: https://github.com/webgpu-native/webgpu-headers/compare/402ee247cfbd9a65673e0f9141d80ccf38e79959..fa1c6ab4927ef1fa5731907b42b62ea93119866c

[almarklein]

CI stalls because the compute example fails:

cd examples/compute && "build/compute" 1 2 3 4
UNCAPTURED ERROR (4): MaxBufferSize { requested: 16, maximum: 0 }
UNCAPTURED ERROR (4): MaxBufferSize { requested: 16, maximum: 0 }
thread '<unnamed>' panicked at 'BindGroup entry does not have buffer nor sampler nor textureView.', src/device.rs:551:13
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
fatal runtime error: failed to initiate panic, error 5
/bin/sh: line 1: 80281 Abort trap: 6           "build/compute" 1 2 3 4
make: *** [run-example-compute] Error 134

So far I have not found the reason. Not sure what I'm missing ...

[almarklein]

Found the problem, and it startled me somewhat. Made a note in #218.

This is ready for merge though.