build: update version (v0.0.50) #68

Job	Run time
cargo	1m 48s
create-release	6s
pypi (x86_64-unknown-linux-gnu, linux, ubuntu-latest)	25m 56s
pypi (x86_64-apple-darwin, macos, macos-latest)	29m 13s
pypi (x86_64-pc-windows-msvc, windows, windows-latest)	26m 52s
upload-assets (armv7-unknown-linux-gnueabihf, ubuntu-latest)	5m 2s
upload-assets (aarch64-unknown-linux-gnu, ubuntu-latest)	5m 12s
upload-assets (aarch64-apple-darwin, macos-latest)	10m 41s
upload-assets (x86_64-unknown-linux-gnu, ubuntu-latest)	4m 3s
upload-assets (x86_64-apple-darwin, macos-latest)	4m 51s
upload-assets (x86_64-pc-windows-msvc, windows-latest)	8m 22s
	2h 2m 6s

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