Bump version to 1.13.2; no changes other than deprecation notice in docs #1219

Job	Run time
Check io_safety feature (windows-latest)	37s
Build with no-std	15s
Check io_safety feature (ubuntu-latest)	18s
Check wasm targets (beta)	3s
Build and test (ubuntu-latest, beta)	1m 11s
Check tokio02 feature	15s
Check wasm targets (nightly)	2s
Build and test (ubuntu-latest, nightly)	1m 12s
Build and test (ubuntu-latest, stable)	1m 32s
Build and test (windows-latest, stable)	2m 31s
Check wasm targets (stable)	2s
Build and test (macOS-latest, nightly)	1m 13s
Build and test (macOS-latest, beta)	1m 31s
Build and test (windows-latest, 1.63)	5m 56s
Build and test (macOS-latest, 1.63)	5m 35s
Build and test (windows-latest, nightly)	2m 27s
Build and test (ubuntu-latest, 1.63)	5m 52s
Build and test (macOS-latest, stable)	1m 17s
Cross compile (i686-unknown-linux-gnu)	2m 36s
Cross compile (powerpc-unknown-linux-gnu)	4m 15s
Checking fmt and docs	33s
Build and test (windows-latest, beta)	2m 28s
Cross compile (powerpc64-unknown-linux-gnu)	4m 18s
Cross compile (arm-linux-androideabi)	5m 0s
	50m 59s

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