Add MSRV 1.63 to CI #1209

Job	Run time
Check tokio02 feature	10s
Build with no-std	15s
Checking fmt and docs	31s
Build and test (ubuntu-latest, nightly)	1m 16s
Check io_safety feature (ubuntu-latest)	11s
Check wasm targets (nightly)	29s
Build and test (ubuntu-latest, beta)	1m 41s
Check io_safety feature (windows-latest)	1m 34s
Cross compile (i686-unknown-linux-gnu)	1m 50s
Check wasm targets (beta)	35s
Build and test (ubuntu-latest, stable)	1m 45s
Cross compile (powerpc-unknown-linux-gnu)	2m 2s
Check wasm targets (stable)	33s
Build and test (ubuntu-latest, 1.63)	3m 47s
Cross compile (powerpc64-unknown-linux-gnu)	2m 3s
Build and test (windows-latest, nightly)	2m 37s
Cross compile (arm-linux-androideabi)	3m 28s
Build and test (windows-latest, beta)	2m 43s
Build and test (windows-latest, stable)	2m 50s
Build and test (windows-latest, 1.63)	4m 45s
Build and test (macOS-latest, nightly)	1m 10s
Build and test (macOS-latest, beta)	1m 10s
Build and test (macOS-latest, stable)	1m 23s
Build and test (macOS-latest, 1.63)	2m 49s
	41m 37s

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