Bump version 0.2.38 #61

Job	Run time
build (x86_64-unknown-linux-gnu)	8m 20s
build (x86_64-unknown-linux-musl)	2m 1s
build (aarch64-unknown-linux-gnu)	1m 55s
build (aarch64-unknown-linux-musl)	2m 2s
build (armv7-unknown-linux-gnueabihf)	2m 2s
build (armv7-unknown-linux-musleabihf)	2m 1s
build (x86_64-apple-darwin)	7m 26s
build (aarch64-apple-darwin)	2m 57s
build (x86_64-pc-windows-msvc)	4m 51s
build (i686-pc-windows-msvc)	5m 2s
build (aarch64-pc-windows-msvc)	5m 18s
build (x86_64-win7-windows-msvc)	4m 32s
build (i686-win7-windows-msvc)	4m 52s
	53m 19s

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