v0.5.0

Changed:

• Require Sopel 8.0+ (#4)
  • Minimum Python version is therefore now 3.8
• Improve logging of inventory & URL settings at startup (#5)

Meta:

• Packaging modernized: goodbye setup.cfg, hello pyproject.toml (#4)
  • Cleaned up some deprecated usage (sopel.module, datetime.utcnow())
  • Tweaked config wizard prompt punctuation