build(deps): bump snafu-derive from 0.6.9 to 0.6.10
Bumps [snafu-derive](https://github.com/shepmaster/snafu) from 0.6.9 to 0.6.10.
- [Release notes](https://github.com/shepmaster/snafu/releases)
- [Changelog](https://github.com/shepmaster/snafu/blob/master/CHANGELOG.md)
- [Commits](https://github.com/shepmaster/snafu/compare/0.6.9...0.6.10)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
dependabot-preview[bot]