fix(probe/ebpf): feed initial connections synchronously on restart
fix(probe/ebpf): feed initial connections synchronously on restart

If we run `getInitialState()` async there is some chance we will see
another ebpf failure and call `useProcfs()` before `getInitialState()`
gets to the last line, whereupon it will crash on nil pointer.

Also it seems pointless to call `performEbpfTrack()` without waiting
for something to feed in, so I suspect this is what the original
author had in mind.

It will slow down this one `Report()` on machines with a lot of
processes or connections, but ebpfTracker restart is supposed to be a
rare event.

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