chore(deps-dev): bump ava from 3.8.2 to 3.15.0

Bumps [ava](https://github.com/avajs/ava) from 3.8.2 to 3.15.0.
- [Release notes](https://github.com/avajs/ava/releases)
- [Commits](avajs/ava@v3.8.2...v3.15.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]