[WebGPU] It is legal to draw zero instances, vertices, or indices in WebGPU but this results in a validation error
<rdar://problem/117279454>
Pull request: https://github.com/WebKit/WebKit/pull/19368
Committed 269659@main (8561f11281d9): <https://commits.webkit.org/269659@main> Reviewed commits have been landed. Closing PR #19368 and removing active labels.