Bump rand from 0.8.5 to 0.8.6 in /listings/ch17-async-await/listing-17-18#4736

dependabot[bot] wants to merge 1 commit intomainrust-lang/book:mainfrom

dependabot/cargo/listings/ch17-async-await/listing-17-18/rand-0.8.6rust-lang/book:dependabot/cargo/listings/ch17-async-await/listing-17-18/rand-0.8.6Copy head branch name to clipboard