chore(deps): bump rand to 0.8.6 #403

Job	Run time
Coverage (llvm-cov)	1m 50s
lint	1m 32s
cargo-deny (advisories + licenses)	22s
security	30s
version	4s
mutation	1m 38s
test (ubuntu-latest)	1m 50s
test (macos-latest)	2m 30s
test (windows-latest)	3m 30s
	13m 46s

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