fix: midnight cron not executing

Description

WIP

When scheduling a cron job at midnight everyday (00 00 * * *), it doesn't get executed.

Fixed the cron pattern in the test that was supposed to cover this use case.

[X] Bug fix (non-breaking change which fixes an issue)
[ ] New feature (non-breaking change which adds functionality)
[ ] Breaking change (fix or feature that would cause existing functionality to change)

[ ] My code follows the code style of this project.
[ ] My change requires a change to the documentation.
[ ] I have updated the documentation accordingly.
[ ] I have added tests to cover my changes.
[ ] All new and existing tests passed.
[ ] If my change introduces a breaking change, I have added a ! after the type/scope in the title (see the Conventional Commits standard).