fix: Make sure the optimizer calls the type's `get_queryset` for nested lists/connections

[bellini666]

Fix #562

Summary by Sourcery

This pull request fixes an issue where the optimizer was not calling the type's get_queryset method for nested lists and connections. It also refactors the optimizer to use _default_manager for prefetching when prefetch_custom_queryset is enabled. Additionally, a new test is added to ensure the correct behavior.

• Bug Fixes:
  • Ensure the optimizer calls the type's get_queryset method for nested lists and connections.
• Enhancements:
  • Refactor the optimizer to use _default_manager for prefetching when prefetch_custom_queryset is enabled, otherwise use _base_manager.
• Tests:
  • Add a test to verify that the optimizer calls the type's get_queryset method for nested lists and connections.

[sourcery-ai[bot]]

Reviewer's Guide by Sourcery

This pull request addresses issue #562 by ensuring that the optimizer calls the type's get_queryset method for nested lists and connections. The changes include modifications to the optimizer logic in strawberry_django/optimizer.py, the addition of a new test in tests/test_optimizer.py, and an update to the GraphQL schema in tests/projects/schema.py.

File-Level Changes

Files	Changes
tests/test_optimizer.py strawberry_django/optimizer.py	Enhanced the optimizer to call the type's get_queryset for nested lists/connections and added corresponding tests to validate this behavior.

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 75.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 89.00%. Comparing base (1023674) to head (2f85416).

Files	Patch %	Lines
strawberry_django/optimizer.py	75.00%	3 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #568 +/- ## ========================================== + Coverage 88.88% 89.00% +0.11% ========================================== Files 41 41 Lines 3545 3547 +2 ========================================== + Hits 3151 3157 +6 + Misses 394 390 -4 ```

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