Fixes ``py.exe`` handling of shebangs like ``/usr/bin/env python3.12``,
which were previously interpreted as ``python3.exe`` instead of
``python3.12.exe``.
Fixes ``py.exe`` handling of shebangs like ``/usr/bin/env python3.12``,
which were previously interpreted as ``python3.exe`` instead of
``python3.12.exe``.