Release candidate 2.5

[TheCaptain989]

What's Changed

• New: Added support for Custom Formats language selection
• New: Now fully supports Sonarr v4
  • 'Original' language support
  • Deprecated languageprofile API endpoint accounted for (Fixes TheCaptain989/radarr-striptracks#64)
  • Still backward compatible with Sonarr v3
• Fixes TheCaptain989/radarr-striptracks#66
• Added Radarr/Sonarr feature compatibility tests
• Added quick drop-out if unable to determine Radarr/Sonarr version
• Added a longer wait for rescan, delete, and update completion
• Improved Radarr/Sonarr database update logic
  • Editor API will no longer be called if there are no changes
  • No update with 'Unknown' language
• Improved automatic language detection logic
• Improved debug logging
• Incremented GitHub workflow actions, per the Node.js 16 deprecation announcement
• Updated README