Bump h2 from 0.3.21 to 0.3.24 in /tests/hello-rustls (#95) #354

Job	Run time
Build Docker Image	38m 59s
macos	4m 3s
linux (x86_64-unknown-linux-musl, x86_64-musl)	2m 27s
linux (i686-unknown-linux-musl, i686-musl)	2m 12s
windows (x64, x86_64-pc-windows-msvc)	4m 53s
windows (x86, i686-pc-windows-msvc)	5m 11s
linux (aarch64-unknown-linux-musl, aarch64-musl)	2m 28s
linux (armv7-unknown-linux-musleabihf, armv7-musleabihf)	2m 17s
linux (armv7-unknown-linux-musleabi, armv7-musleabi)	2m 15s
Release	0s
	1h 4m 45s

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