Bump ava from 2.3.0 to 2.4.0
Bump ava from 2.3.0 to 2.4.0

Bumps [ava](https://github.com/avajs/ava) from 2.3.0 to 2.4.0.
- [Release notes](https://github.com/avajs/ava/releases)
- [Commits](https://github.com/avajs/ava/compare/v2.3.0...v2.4.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
bdistin/fs-nextra