Increase Test Coverage for PyLoadAPI

[tr4nt0r]

Enhanced the testing framework to improve coverage for PyLoadAPI:

• Added new fixture TEST_STATUS_RESPONSE to mock status responses.
• Updated imports to use collections.abc for AsyncGenerator and Generator.
• Added parameterized tests in test_api.py to cover various API methods including version, get_status, pause, unpause, toggle_pause, stop_all_downloads, restart_failed, toggle_reconnect, delete_finished, restart, and free_space.
• Implemented a test to validate the LoginResponse dataclass methods from_dict, to_dict and __getitem__.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 100.00%. Comparing base (0f6d906) to head (c8bd8c2).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #33 +/- ## =========================================== + Coverage 96.83% 100.00% +3.16% =========================================== Files 4 4 Lines 158 158 =========================================== + Hits 153 158 +5 + Misses 5 0 -5 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.