basename in Task.valid_attr, but not in Task.__init__

[petkapou]

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Describe the bug

Task attribute basename is in Task.valid_attr, but not in the Task constructor. Then call of a function dict_to_task fails due to a not accepted argument.

Environment

1. OS: Rocky 8
2. python version: 3.9.11
3. doit version: 0.35.0