Handle when RPC node closes events connection #71
Description
The indexer is crashing when the RPC node closes the events streaming connection for any reason.
TODO:
- Log an explanatory error
- Reconnect to RPC and continue listening for events
...
INFO sync:realtime:head_block: blob_indexer::synchronizer: Syncing 1 slots… initial_slot=9166076 final_slot=9166077 reverse_sync=false
INFO sync:realtime:head_block: blob_indexer::slots_processor: Block indexed successfully slot=9166076 block_number=19961540
ERROR blob_indexer::indexer: An error occurred while running a syncing task error=RealtimeSyncingTaskError(BeaconEventsConnectionFailure(StreamEnded))