Bump to v0.2.4 #5

Job	Run time
Build Docker Image	4m 38s
Build aarch64-apple-darwin	2m 24s
Build x86_64-pc-windows-msvc	4m 4s
Build aarch64-unknown-linux-gnu	3m 11s
Build x86_64-unknown-linux-gnu	1m 53s
Build x86_64-apple-darwin	2m 34s
Create Release	6s
Publish to crates.io	1m 1s
	19m 51s

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