fix: add protobuf dependency for macOS CI builds #6

Job	Run time
Build Rust (aarch64-apple-darwin)	11m 45s
Build Rust (x86_64-apple-darwin)	11m 18s
Build Rust (x86_64-unknown-linux-gnu)	10m 50s
Build Rust (x86_64-pc-windows-msvc)	11m 25s
Create Release	0s
Publish to npm	0s
	45m 18s

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