[WebGPU, Dawn]: Upgrade Dawn and new features for WebGPU#727

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MikhailGorobets wants to merge 8 commits into

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MikhailGorobets:upgrade_dawn

Commits on May 7, 2026

[WebGPU, Dawn]: Upgrade Dawn and new features for WebGPU
MikhailGorobets
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WebGPU: Activate Float32 Blendable Feature
MikhailGorobets
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[WebGPU, Dawn] Updated Dawn to support texture-tier-1 in the Tint converter
MikhailGorobets
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WebGPU: Simplify SwapChainWebGPUImpl logic
MikhailGorobets
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[WebGPU, Dawn]: Fixed build for MacOS
MikhailGorobets
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WebGPU: Replaced std::vector<Uint8> with std::unique_ptr<Uint8[]> in upload and dynamic memory managers to avoid zero-initialization overhead
MikhailGorobets
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WebGPU: Added macOS backing size auto-detection in swap chain configuration
MikhailGorobets
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GPUTestFramework: Added WebGPU device attachment for Emscripten
MikhailGorobets
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