chore(deps): bump lodash.merge from 4.6.0 to 4.6.2 in /examples/ava

Bumps [lodash.merge](https://github.com/lodash/lodash) from 4.6.0 to 4.6.2.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/commits)

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