increase locked_by column size to fix issues with long hostnames crashing delayed_job worker. This has become a very common issue for our users of snorby.
increase locked_by column size to fix issues with long hostnames
crashing delayed_job worker. This has become a very common issue for
our users of snorby.

collectiveidea/delayed_job_data_mapper,OttrJam/delayed_job_data_mapper