update condor submit to include `request_disk`

The LIGO LDAS cluster condor configurations are being updated to now require request_disk directives in the condor submit commands:

https://git.ligo.org/computing/sccb/-/issues/840 https://computing.docs.ligo.org/guide/condor/tutorial/

We'll need to update the condor submit code in locklost/condor.py to include that directive, but first we'll need to asses how much disk space the event submit jobs actually require.