Remove `[workspace]` section from `rand`'s Cargo.toml (#1743) #1659

Job	Run time
test-cross (ubuntu-latest, powerpc-unknown-linux-gnu, stable)	41s
test-miri	3m 14s
test (windows-latest, x86_64-pc-windows-gnu, stable)	1m 7s
rustfmt	8s
test (ubuntu-latest, x86_64-unknown-linux-gnu, stable)	21s
Lockfile is up-to-date	6s
test (macos-latest, x86_64-apple-darwin, stable)	40s
test (windows-latest, x86_64-pc-windows-msvc, beta)	58s
test-ios	22s
test (ubuntu-latest, sudo apt-get update ; sudo apt install gcc-multilib, i686-unknown-linux-gnu,...	58s
test (ubuntu-latest, x86_64-unknown-linux-gnu, MSRV, 1.85.0)	33s
test-no-std	16s
Check doc	20s
test (ubuntu-latest, x86_64-unknown-linux-gnu, nightly, minimal_versions)	34s
Clippy	20s
	10m 38s

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