Update rand requirement from 0.8 to 0.9 #210

Job	Run time
Bench (current, refs/pull/193/merge)	1m 9s
Bench (base, main)	1m 14s
Rustfmt	2m 40s
Test Suite (stable)	1m 19s
Builds (ubuntu-22.04, aarch64-linux-android)	1m 8s
Test Suite (beta)	1m 8s
Builds (ubuntu-22.04, x86_64-unknown-linux-musl)	1m 6s
Test Suite (1.74.0)	1m 15s
Builds (ubuntu-22.04, wasm32-unknown-unknown, --features wasm --no-default-features)	1m 4s
Builds (macos-13, aarch64-apple-ios)	1m 7s
Builds (macos-13, x86_64-apple-darwin)	1m 19s
Builds (macos-14, aarch64-apple-darwin)	1s
Builds (windows-2019, x86_64-pc-windows-msvc)	1m 6s
Upload benchmark results	0s
	15m 36s

Provide feedback