Bumps [proptest](https://github.com/altsysrq/proptest) from 0.9.6 to 1.0.0. - [Release notes](https://github.com/altsysrq/proptest/releases) - [Changelog](https://github.com/AltSysrq/proptest/blob/master/CHANGELOG.md) - [Commits](https://github.com/altsysrq/proptest/compare/0.9.6...1.0.0) Signed-off-by: dependabot[bot] <support@github.com>