[g-plugin-device-renderer] WebGPU 不支持 divisor

[xiaoiver]

WebGPU 渲染 Path 时报错：

Instance range (first: 0, count: 3) requires a larger buffer (192) than the bound buffer size (64) of the vertex buffer at slot 0 with stride 64.
 - While encoding [RenderPassEncoder].DrawIndexed(15, 3, 0, 0, 0).

Debug group stack:
 > "Main Render Pass"

https://github.com/gpuweb/gpuweb/blob/main/design/Pipelines.md#input-state

Vulkan doesn’t support a divisor for its step rate.