Prepare 1.13.0 release #1181

Job	Run time
Build with no-std	15s
Check tokio02 feature	10s
Checking fmt and docs	35s
Build and test (ubuntu-latest, nightly)	1m 12s
Check io_safety feature (ubuntu-latest)	10s
Build and test (ubuntu-latest, beta)	1m 14s
Check wasm targets (nightly)	28s
Check io_safety feature (windows-latest)	18s
Cross compile (i686-unknown-linux-gnu)	1m 56s
Build and test (ubuntu-latest, stable)	1m 14s
Check wasm targets (beta)	31s
Build and test (windows-latest, nightly)	57s
Cross compile (powerpc-unknown-linux-gnu)	2m 7s
Check wasm targets (stable)	28s
Build and test (windows-latest, beta)	1m 17s
Cross compile (powerpc64-unknown-linux-gnu)	2m 8s
Build and test (windows-latest, stable)	1m 11s
Cross compile (arm-linux-androideabi)	3m 41s
Build and test (macOS-latest, nightly)	1m 14s
Build and test (macOS-latest, beta)	1m 10s
Build and test (macOS-latest, stable)	1m 10s
	23m 26s

Provide feedback