chore: prepare v1.5.0 #475

Job	Run time
loom	3m 34s
miri	10m 38s
minrust	3m 7s
cross (i686-unknown-linux-gnu)	1m 33s
cross (armv7-unknown-linux-gnueabihf)	1m 43s
cross (powerpc-unknown-linux-gnu)	1m 52s
cross (powerpc64-unknown-linux-gnu)	2m 9s
cross (wasm32-unknown-unknown)	21s
nightly	5m 56s
rustfmt	18s
stable (ubuntu-latest)	2m 31s
stable (macos-latest)	3m 47s
stable (windows-latest)	4m 21s
tsan	4m 13s
Publish Documentation	2m 39s
	48m 42s

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