Short context length on Qwen quantized examples.

[AlpineVibrations]

Running any of the quantized examples so far they all seam to have a 1024 token limit.

cargo run --example quantized-qwen3 --release --features cuda,cudnn -- --which 4b   --prompt "1802tokens later..."

Error: shape mismatch on target dim, dst: 1024, src: 1802 + 0