Make condor submit file compatible with future condor versions

On emfollow-dev the condor submission gives the following deprecation warning

Warning: Use of multiple queue statements in a single submit file is deprecated.
         This functionality will be removed in the V24 feature series. To see
         how multiple queue statements can be converted into one visit:
https://htcondor.readthedocs.io/en/latest/auto-redirect.html?category=example&tag=convert-multi-queue-statements

Output of condor_version on emfollow-dev

$ condor_version 
$CondorVersion: 23.7.2 2024-05-16 BuildID: 733409 PackageID: 23.7.2-1 GitSHA: 585ec167 $
$CondorPlatform: x86_64_AlmaLinux8 $

The submit file in gwcelery has to be made compatible with the new recommendations

For context emfollow-playground/production uses CondorVersion: 23.6.2 at the time of creating the issue.