Update enums.py for unknown payments

[ThomasMartin83]

without it we get an error
Traceback (most recent call last):
File "/home/user/steam_cleaner/venv/bin/steamctl", line 8, in
sys.exit(main())
~~~~^^
File "/home/user/steam_cleaner/venv/lib/python3.13/site-packages/steamctl/main.py", line 59, in main
rcode = cmd_func(args=args)
File "/home/user/steam_cleaner/venv/lib/python3.13/site-packages/steamctl/commands/apps/gcmds.py", line 204, in cmd_apps_licenses_list
print(f" Payment method: { EPaymentMethod(license.payment_method).name } ({license.payment_method})")
~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.13/enum.py", line 726, in call
return cls.new(cls, value)
~~~~~~~~~~~^^^^^^^^^^^^
File "/usr/lib/python3.13/enum.py", line 1201, in new
raise ve_exc
ValueError: 1025 is not a valid EPaymentMethod