v1.22.5

Changelog

• 05e08f5 2025
• a5776e0 ErrTooFragmented
• 2d45d96 calcParts: return ErrZeroParts if parts == 0
• c3980bd don't care about os.Stat err other than os.ErrNotExist
• 88af745 go get -u
• fc1bb95 let single flag be part of Session
• 916cb55 newProgress: mpb.WithQueueLen
• 9602f4e refactor (Session).isOutputFileExist