Similar to T295733, we should test if the ETL jobs fail and an error notification is triggered if the latest snapshot of data is unavailable.

In this task, we will create a test nb called zzz_snapshort_error_test.ipynb which will call for a snapshot in a future month (this will guarantee that the snapshot is not available in any of the wmf tables we use for calculating metrics) and see if the job fails, log file is updated and failure notification is sent via email.