Indexer Status frozen as RUNNING if unexpectedly crashes

[darunrs]

Indexer Status remains as RUNNING if the executor in Runner crashes in the middle of runFunction invocation. This is because the status is set to STOPPED only if the runFunction invocation fails and its error is caught. So, if the error was somehow not caught and the error was thrown at the Executor class level, it will fail there without any error handling, crashing the worker thread.

To resolve this issue, we need to ensure that StreamHandler is able to write the status and blockheight to postgres if it detects the worker thread failed.