• build(deps): bump tracing-core from 0.1.10 to 0.1.13

    Bumps [tracing-core](https://github.com/tokio-rs/tracing) from 0.1.10 to 0.1.13.
    - [Release notes](https://github.com/tokio-rs/tracing/releases)
    - [Commits](tokio-rs/tracing@tracing-core-0.1.10...tracing-core-0.1.13)
    
    Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
    dependabot-preview committed Aug 5, 2020