Update wgpu to 0.19 #8716

Job	Run time
Format + check + test	5m 26s
android	23s
cargo-deny aarch64-apple-darwin	40s
cargo-deny aarch64-linux-android	38s
cargo-deny i686-pc-windows-gnu	42s
cargo-deny i686-pc-windows-msvc	36s
cargo-deny i686-unknown-linux-gnu	37s
cargo-deny wasm32-unknown-unknown	37s
cargo-deny x86_64-apple-darwin	38s
cargo-deny x86_64-pc-windows-gnu	38s
cargo-deny x86_64-pc-windows-msvc	44s
cargo-deny x86_64-unknown-linux-gnu	43s
cargo-deny x86_64-unknown-linux-musl	44s
cargo-deny x86_64-unknown-redox	36s
Check wasm32 + wasm-bindgen	2m 47s
Check Windows	1m 47s
	18m 16s

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