feat: mp3gain-compatible CLI interface #4

Job	Run time
Build for x86_64-apple-darwin	18s
Build for aarch64-pc-windows-msvc	1m 24s
Build for x86_64-pc-windows-msvc	45s
Build for aarch64-apple-darwin	23s
Build for x86_64-unknown-linux-gnu	17s
Create Release	12s
	3m 19s

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