7.7.0 - The Last Chance

Add

• Expose a new imageDownloader(_:didReceive:completionHandler:) delegate method in ImageDownloaderDelegate to allow making ResponseDisposition decision to the download task. #2048 @onevcat

Fix

• Some type conversion warnings which might annoy under Swift 6 compiler. #2060 #2063 @zunda-pixel
• Apply access limitation to the internal Source.Identifier. #2074 @iwill-hwang