chore: release 0.21.7 #108

Job	Run time
init	1s
build (stable, x86_64-unknown-linux-gnu)	5m 46s
build (stable, aarch64-unknown-linux-gnu)	6m 24s
build (stable, x86_64-unknown-linux-musl)	5m 56s
build (stable, aarch64-unknown-linux-musl)	6m 25s
build (stable, x86_64-apple-darwin)	16m 53s
build (stable, x86_64-pc-windows-msvc)	12m 1s
build (stable, aarch64-apple-darwin)	6m 59s
release	22s
publish	2m 26s
brew / Bump Brew Version	8s
pages / docs / build	11s
pages / deploy	12s
	1h 3m 44s

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