bump version to 0.0.16 #6

Job	Run time
build / Compile native gem (x86_64-linux-musl, true)	2m 21s
build / Compile native gem (x86_64-darwin, true)	2m 15s
build / Compile native gem (aarch64-linux, true)	2m 1s
build / Compile native gem (arm-linux, true)	2m 14s
build / Compile native gem (aarch64-linux-musl, true)	2m 32s
build / Compile native gem (arm64-darwin, true)	2m 19s
build / Compile native gem (x64-mingw-ucrt, true)	2m 25s
build / Compile native gem (x86_64-linux, true)	2m 19s
	18m 26s

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