cpal

Prepare 0.15.3 release (#856) #837

Job	Run time
clippy-test	1m 1s
cargo-publish	15s
rustfmt-check	15s
ubuntu-test	27s
linux-check-and-test-armv7	1m 54s
asmjs-wasm32-test (wasm32-unknown-emscripten)	52s
wasm32-bindgen-test (wasm32-unknown-unknown)	18s
wasm32-wasi-test (wasm32-wasi)	24s
windows-test (x86_64)	3m 5s
android-apk-build	2m 34s
windows-test (i686)	3m 1s
android-check	33s
ios-build	3m 11s
macos-test	1m 55s
wasm-beep-build	26s
	20m 11s

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