Bump tracing-subscriber from 0.3.7 to 0.3.9#11

dependabot[bot] wants to merge 1 commit intomainniclashoyer/rtltcp:mainfrom

dependabot/cargo/tracing-subscriber-0.3.9niclashoyer/rtltcp:dependabot/cargo/tracing-subscriber-0.3.9Copy head branch name to clipboard