[RTADPA BW Tests] minor patch following !412

cc @rjhunter

Following error

Obtaining line descriptives
Traceback (most recent call last):
  File "/home/lblocal/jenkins/perf/workspace/nightly-builds/tests/build/DBASE/PRConfig/v999r999/python/MooreTests/line-descriptives.py", line 41, in <module>
    if options.input_process == "Hlt1":
  File "/home/lblocal/jenkins/perf/workspace/nightly-builds/tests/build/Gaudi/InstallArea/x86_64_v3-el9-gcc13+detdesc-opt+g/python/GaudiKernel/Configurable.py", line 496, in __getattr__
    if isinstance(self._properties[attr].__get__(self), DataHandle):
  File "/home/lblocal/jenkins/perf/workspace/nightly-builds/tests/build/Gaudi/InstallArea/x86_64_v3-el9-gcc13+detdesc-opt+g/python/GaudiKernel/PropertyProxy.py", line 106, in __get__
    return self.descr.__get__(obj, type)
AttributeError: input_process

ToDo:

• Test ? It's so light and trivial I think we can probably skip a ci
• Tested locally see: !415 (comment 7909363)