Bug: Job fails for some input arguments that are treated as string (str vs int comparison

[astrochun]

Describe the bug (REQUIRED)
Parsing of input arguments is treated as string. In some cases, this inputs are integer:
This results in the following error

Traceback (most recent call last):
  File "./scripts/script_run", line 394, in <module>
    d.synchronize()
  File "/home/mozart/codes/ReQUIAM/requiam/delta.py", line 73, in synchronize
    if total_delta > self.sync_max:
TypeError: '>' not supported between instances of 'int' and 'str'

Version information (please complete the following, default in brackets): (REQUIRED)

• ReQUIAM version: 0.16.1
• ReQUIAM branch info: master

Reproduction Steps (REQUIRED)
Steps to reproduce the behavior:

1. script_run --quota --sync_max 1500 --sync

Expected behavior (Optional)
Job should run with a higher sync max.