fix: Raise meaningful exception when oauth callback times out #363

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@mafrosis

The following contributors were found for this pull request:

✅ 5155d92 Author: @mafrosis <gi***b@mafro.net>
✅ 3972e11 Author: @chalmerlowe <cha******we@google.com>
✅ bc2af71 Author: @parthea <par*****ou@google.com>

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