Draft: Specify hour and second in before-date and after-date options

Makes the --before-date and --after-date options able to specify hours and seconds.

1. Understanding

• Understand how the --before-date and --after-date work
  • Does it just impact which GitLab logs are collected, or is it also for system data?
    • Review the MRs for those options
  • How do the libraries called by those options work?
• Test out the libraries called by --before-date and --after-date. Get comfortable with them

2. Develop

• Clone gitlabsos
• Write/edit tests
• Make changes
• Run tests, iterate until they pass
• Try it out on Sandbox instance
• Request a review
• Once merged
  • announce in #support_self-managed
  • add to SWRT