Version 4.0.0 - Updated JWT library, PHP >= 8.x

What's Changed

• Fix typo in doc by @gpapin in #26
• Updating to use firebase JWT 6.4 version by @thundrax in #31
  • Formatted the codebase with prettier
  • Bumped minimum PHP version to 8.0
  • CI now runs with Github Actions

New Contributors

• @gpapin made their first contribution in #26
• @thundrax made their first contribution in #31

Full Changelog: v3.2.2...v4.0.0