FFI

bump livekit-ffi to 0.12.4 (#536) #515

Job	Run time
Build (x86_64-pc-windows-msvc)	6m 13s
Build (aarch64-pc-windows-msvc)	6m 19s
Build (x86_64-apple-darwin)	4m 45s
Build (aarch64-apple-darwin)	5m 5s
Build (aarch64-apple-ios)	5m 33s
Build (aarch64-apple-ios-sim)	7m 36s
Build (x86_64-unknown-linux-gnu)	4m 30s
Build (aarch64-unknown-linux-gnu)	6m 22s
Build (aarch64-linux-android)	3m 31s
Build (armv7-linux-androideabi)	3m 26s
Build (x86_64-linux-android)	3m 20s
Release to GH (Draft)	0s
	56m 40s

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