Fix NameError name key is not defined

[MaxMls]

Bug fix

bash run.sh

Traceback (most recent call last): File "", line 198, in _run_module_as_main File "", line 88, in _run_code File "/home/user/GitHub/ADBFileExplorer/./src/app/main.py", line 21, in from core.main import Adb File "/home/user/GitHub/ADBFileExplorer/./src/app/core/main.py", line 9, in from app.core.managers import PythonADBManager, ADBManager, WorkersManager File "/home/user/GitHub/ADBFileExplorer/src/app/core/managers.py", line 70, in class PythonADBManager(ADBManager): File "/home/user/GitHub/ADBFileExplorer/src/app/core/managers.py", line 71, in PythonADBManager signer = get_python_rsa_keys_signer() ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/user/GitHub/ADBFileExplorer/src/app/helpers/tools.py", line 137, in get_python_rsa_keys_signer keygen(key) ^^^ NameError: name 'key' is not defined