Add missing bindingArraySize field

[jakubmaniak]

Add missing bindingArraySize field

According to the WebGPU native headers, WGPUBindGroupLayoutEntry includes the bindingArraySize field:

https://github.com/webgpu-native/webgpu-headers/blob/main/webgpu.h#L3643

typedef struct WGPUBindGroupLayoutEntry {
    WGPUChainedStruct * nextInChain;
    /**
     * The `INIT` macro sets this to `0`.
     */
    uint32_t binding;
    /**
     * The `INIT` macro sets this to @ref WGPUShaderStage_None.
     */
    WGPUShaderStage visibility;
    /**
     * If non-zero, this entry defines a binding array with this size.
     *
     * The `INIT` macro sets this to `0`.
     */
    uint32_t bindingArraySize;
    /**
     * The `INIT` macro sets this to zero (which sets the entry to `BindingNotUsed`).
     */
    WGPUBufferBindingLayout buffer;
    WGPUSamplerBindingLayout sampler;
    WGPUTextureBindingLayout texture;
    WGPUStorageTextureBindingLayout storageTexture;
} WGPUBindGroupLayoutEntry WGPU_STRUCTURE_ATTRIBUTE;

This change may also help resolve the issue described in existing comment in the code.

Tested on:

• Windows 10 (x86_64)
• Windows 11 (x86_64)
• Linux Mint 22.3 (x86_64)

macOS has not been tested yet.