[Webservice] Ignore final empty line from squeue
Description
Job monitor logs contain lots of extraneous warnings:
2024-12-10 09:13:05,038 - __main__ - WARNING - [job_monitor.py:84] Could not parse squeue status line ''The squeue output has a trailing newline, so we were trying to parse an empty line.
How Has This Been Tested?
Using subprocess.run() in a shell.
Types of changes
- Bug fix (non-breaking change which fixes an issue)
Checklist:
- My code follows the code style of this project.
