Debug mode fails with --background as script arg

[hummat]

Describe the issue

The following check for --background in sys.argv causes an error if the render script takes --background as an argument:

BlenderProc/blenderproc/python/utility/SetupUtility.py

Line 70 in b0bd846

is_debug_mode = "--background" not in sys.argv

Error: Python: Traceback (most recent call last):
  File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1147, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 940, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/home/matthias/.pyenv/versions/3.10.13/envs/completion/lib/python3.10/site-packages/blenderproc/__init__.py", line 39, in <module>
    SetupUtility.setup([])
  File "/home/matthias/.pyenv/versions/3.10.13/envs/completion/lib/python3.10/site-packages/blenderproc/python/utility/SetupUtility.py", line 76, in setup
    SetupUtility.setup_utility_paths(sys.argv[sys.argv.index("--") + 2])
                                              ^^^^^^^^^^^^^^^^^^^^
ValueError: '--' is not in list

Minimal code example

# Can be reproduced with the quickstart script (even though it does not actually expect a `--background` argument):

blenderproc debug blenderproc/scripts/quickstart.py --background

Files required to run the code

No response

Expected behavior

The debug mode should work but fails.

BlenderProc version

v2.8.0