Based on the debug log, it seems to find Python3.9, but it seems that ti does not use it, which is somewhat strange. I also tried with --python python3.9 and with ...

Requirement already satisfied: numpy in c:\users\hasee\appdata\local\programs\python\python-3.9.13\lib\site-packages (from multi_agent_ale_py) (1.24.1)Building wheels ...