Tests

Update `getrandom` to `0.3.0` #597

Job	Run time
no_std build (stable)	34s
Build documentation	16s
Tests w. sanitizers	1m 20s
no_std build (nightly)	30s
Build and check benchmarks	53s
test (stable, ubuntu-latest)	3m 6s
WebAssembly - Release build (wasm32-unknown-unknown)	11s
test (stable, macos-latest)	3m 8s
Linux/ARM - Release tests (i686-unknown-linux-gnu)	1m 20s
test (stable, windows-latest)	6m 49s
Linux/ARM - Release tests (armv7-unknown-linux-gnueabihf)	1m 35s
test (beta, ubuntu-latest)	3m 8s
Linux/ARM - Release tests (powerpc64-unknown-linux-gnu)	1m 16s
test (beta, macos-latest)	2m 44s
test (beta, windows-latest)	5m 34s
test (nightly, ubuntu-latest)	3m 0s
test (nightly, macos-latest)	2m 59s
test (nightly, windows-latest)	5m 49s
test (1.80.0, ubuntu-latest)	3m 8s
test (1.80.0, macos-latest)	2m 58s
test (1.80.0, windows-latest)	6m 22s
	56m 40s

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