Bump leakage from 0.3.0 to 0.5.0

Bumps [leakage](https://github.com/andywer/leakage) from 0.3.0 to 0.5.0. - [Release notes](https://github.com/andywer/leakage/releases) - [Changelog](https://github.com/andywer/leakage/blob/master/CHANGELOG.md) - [Commits](andywer/leakage@v0.3.0...v0.5.0) Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]