Prepare 1.13.0 release #1199

Job	Run time
Check tokio02 feature	11s
Build with no-std	12s
Checking fmt and docs	29s
Build and test (ubuntu-latest, nightly)	1m 17s
Check io_safety feature (ubuntu-latest)	9s
Build and test (ubuntu-latest, beta)	1m 41s
Check wasm targets (nightly)	2m 46s
Cross compile (i686-unknown-linux-gnu)	1m 50s
Check io_safety feature (windows-latest)	1m 25s
Build and test (ubuntu-latest, stable)	1m 43s
Check wasm targets (beta)	2m 44s
Cross compile (powerpc-unknown-linux-gnu)	2m 5s
Build and test (windows-latest, nightly)	2m 38s
Check wasm targets (stable)	2m 46s
Cross compile (powerpc64-unknown-linux-gnu)	2m 4s
Build and test (windows-latest, beta)	2m 37s
Cross compile (arm-linux-androideabi)	3m 28s
Build and test (windows-latest, stable)	2m 46s
Build and test (macOS-latest, nightly)	1m 12s
Build and test (macOS-latest, beta)	1m 9s
Build and test (macOS-latest, stable)	1m 12s
	36m 24s

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