chore: prepare v1.7.0 #692

Job	Run time
miri	11m 0s
loom	2m 28s
minrust	2m 12s
cross (i686-unknown-linux-gnu)	31s
nightly	3m 29s
cross (armv7-unknown-linux-gnueabihf)	35s
rustfmt	10s
cross (powerpc-unknown-linux-gnu)	32s
stable (ubuntu-latest)	1m 16s
cross (powerpc64-unknown-linux-gnu)	32s
tsan	2m 41s
stable (macos-latest)	1m 8s
cross (wasm32-unknown-unknown)	12s
stable (windows-latest)	2m 13s
Publish Documentation	2m 2s
	31m 1s

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