[Blender 3.3.1] Convert COA Data fix RuntimeError: IDPropertyGroup changed size during iteration

[lufog]

I'm not a python programmer, so I don't know what I'm doing. 🤷‍♂️ I just googled the error and found the solution on Stack Overflow.

Fixes:

Python: Traceback (most recent call last):
  File "%AppData%\Blender Foundation\Blender\3.3\scripts\addons\coa_tools\operators\version_converter.py", line 170, in execute
    self.convert_properties()
  File "%AppData%\Blender Foundation\Blender\3.3\scripts\addons\coa_tools\operators\version_converter.py", line 63, in convert_properties
    for prop_name in obj.keys():
RuntimeError: IDPropertyGroup changed size during iteration