Tests

Update special requirement from 0.8.1 to 0.10.3 #678

Job	Run time
test-cross (ubuntu-latest, powerpc-unknown-linux-gnu, stable)	1m 32s
Check doc	1m 10s
test-ios	39s
test (ubuntu-latest, x86_64-unknown-linux-gnu, stable)	1m 9s
test (macos-latest, x86_64-apple-darwin, stable)	2m 37s
test-miri	2m 47s
test-no-std	15s
test (windows-latest, x86_64-pc-windows-gnu, stable)	2m 3s
test (windows-latest, x86_64-pc-windows-msvc, beta)	1m 52s
test (ubuntu-latest, x86_64-unknown-linux-gnu, MSRV, 1.60.0)	4m 30s
test (ubuntu-latest, sudo apt-get update ; sudo apt install gcc-multilib, i686-unknown-linux-gnu,...	1m 45s
test (ubuntu-latest, x86_64-unknown-linux-gnu, nightly, minimal_versions)	1m 26s
	21m 45s

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