All I need to do to fix this issue was run this command:
pip3 install reportlab --upgrade in the system.
That works fine!
On Debian 12 Bookwork we needed to run the following commands:
pip install reportlab --upgrade --break-system-packages
apt install python3-cairo
pip install rlPyCairo --upgrade --break-system-packages
pip install cairocffi --upgrade --break-system-packages
This is not the recommended approach, since you should use a python venv.