If we have past reports where publishing failed, get them to the collector when we can
Once #11860 (closed) is done, we might end up in the state where some reports are on disk and haven't been successfully sent.
Somehow in the course of normal operation ooni should notice that such reports exist, and send them.
Should we check for this state when we connect to a collector ("oh hey, we connected, is there anything on disk that we want to tell the collector also")? Should we check on startup for any tests? Should we have a separate script that runs periodically to flush old reports?
That last one sounds wisest to me, but I haven't thought through all the issues.