[WebGPU] validate polygon mode #7865

Job	Run time
Test WebAssembly	5m 47s
Clippy Windows x86_64	3m 22s
Clippy MacOS x86_64	3m 28s
Run `cargo deny check advisories`	5m 9s
Clippy MacOS aarch64	3m 23s
Clippy IOS aarch64	4m 16s
Run `cargo deny check`	6m 3s
Clippy Linux x86_64	1m 34s
Clippy cts_runner	1m 0s
Clippy Linux aarch64	2m 40s
Doctest	58s
Clippy Android aarch64	1m 46s
Format	19s
Clippy WebAssembly	1m 42s
Clippy Emscripten	1m 16s
Test Windows x86_64	11m 46s
Test Mac aarch64	1m 30s
Test Linux x86_64	7m 6s
	1h 3m 5s

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