v0.8: Prepare for the next release #3127

Job	Run time
dependencies	17s
miri	25m 14s
careful	5m 12s
features (msrv)	1m 16s
rustfmt	7s
features (nightly)	31s
san	13m 34s
test (1.63, ubuntu-latest)	6m 33s
codegen	2s
test (1.63, windows-latest)	8m 26s
docs	15s
test (stable, ubuntu-latest)	5m 2s
test (stable, windows-latest)	7m 37s
loom	49s
test (nightly, ubuntu-latest)	9m 6s
test (nightly, windows-latest)	12m 42s
test (nightly, ubuntu-latest, i686-unknown-linux-gnu)	5m 25s
shellcheck	10s
test (nightly, ubuntu-latest, aarch64-unknown-linux-gnu)	8m 38s
test (nightly, ubuntu-latest, armv7-unknown-linux-gnueabihf)	8m 27s
test (nightly, ubuntu-latest, armv5te-unknown-linux-gnueabi)	9m 14s
ci	0s
	2h 8m 37s

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