Fix camera initialization for Maix Cube

[odudex]

What is this PR for?

Fix #460. Cube camera was not being correctly initialized

What is the purpose of this pull request?

• [x] Bug fix
• [ ] New feature
• [ ] Docs update
• [ ] Other

[codecov[bot]]

Codecov Report

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

Project coverage is 94.70%. Comparing base (fba1281) to head (49c107d). Report is 3 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #461 +/- ## ========================================== + Coverage 94.67% 94.70% +0.02% ========================================== Files 70 70 Lines 7575 7573 -2 ========================================== Hits 7172 7172 + Misses 403 401 -2 ```

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