* Implement GetSyncStatus in the node API
* gazelle
* add HeadSlot function to fuzz tests' fakeChecker
* use HeadFetcher to get head slot
* remove useless code
Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>
Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>