Bump database_cleaner from 1.6.2 to 1.7.0
Bump database_cleaner from 1.6.2 to 1.7.0

Bumps [database_cleaner](https://github.com/DatabaseCleaner/database_cleaner) from 1.6.2 to 1.7.0.
- [Release notes](https://github.com/DatabaseCleaner/database_cleaner/releases)
- [Changelog](https://github.com/DatabaseCleaner/database_cleaner/blob/master/History.rdoc)
- [Commits](https://github.com/DatabaseCleaner/database_cleaner/compare/v1.6.2...v1.7.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
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