Use more pytest fixtures and avoid GPU parameterization in test_query/rank/reduction/repr.py

[mroeschke]

Description

Towards #9999

• Use more pytest fixtures
• Avoids pytest.mark.parametrize with GPU objects
• Uses more context managers so state doesn't get altered if a test fails
• python/cudf/cudf/tests/test_query_mask.py contained essentially the same test multiple times, so it was moved to test_query.py

Checklist

• I am familiar with the Contributing Guidelines.
• New or existing tests cover these changes.
• The documentation is up to date with these changes.