Publishing to electron update release server cause it to get stuck

[rahenri]

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Please describe your issue:

Publishing to electron update release server cause it to get stuck. I was looking into the code and it seems the promise that post the asset never calls the resolve callback, shouldn't it be called? Here https://github.com/electron-userland/electron-forge/blob/f2094ca253bc8a3d51292094cf280ccfcdd23026/src/publishers/electron-release-server.js#L106