Length="0" when run sign update in windows

[qthien202]

Hello I run dart run auto_updater:sign_update dist/0.1.0/test.exe in windows then length ="0"

sparkle:dsaSignature="MDwCHBsFd2w9n9+3hr2AVITURIxCA1Jq/VAsdKrZd8ECHH/JEBveX3/iOip3ZBloC2jLSuHDvssakSDVCMY=" length="0"

[Attiv]

same