Bump rand for 0.10.0-rc.5 #1479

Job	Run time
test-miri	3m 57s
test-no-std	15s
test-cross (ubuntu-latest, powerpc-unknown-linux-gnu, stable)	54s
test (macos-latest, x86_64-apple-darwin, stable)	33s
test (ubuntu-latest, x86_64-unknown-linux-gnu, stable)	39s
test (ubuntu-latest, sudo apt-get update ; sudo apt install gcc-multilib, i686-unknown-linux-gnu,...	1m 0s
test (windows-latest, x86_64-pc-windows-msvc, beta)	1m 27s
test (windows-latest, x86_64-pc-windows-gnu, stable)	1m 24s
test (ubuntu-latest, x86_64-unknown-linux-gnu, nightly, minimal_versions)	39s
test-ios	18s
test (ubuntu-latest, x86_64-unknown-linux-gnu, MSRV, 1.85.0)	35s
Check Clippy and rustfmt	14s
Check doc	21s
	12m 16s

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