Test that the bytemuck impl for `Rgba8` is sane (#99) #361

Job	Run time
formatting	23s
cargo test (windows-latest)	42s
cargo clippy (wasm32)	24s
cargo test (macos-latest)	23s
cargo test (ubuntu-latest)	22s
cargo doc	21s
cargo check (msrv) (windows-latest)	46s
cargo check (msrv) (wasm32)	21s
cargo check (msrv) (macos-latest)	24s
cargo clippy (windows-latest)	51s
cargo test (wasm32)	15s
cargo check (msrv) (ubuntu-latest)	22s
cargo clippy (macos-latest)	36s
typos	7s
cargo clippy (ubuntu-latest)	32s
	6m 49s

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