Resolving evidence_detailed_citations and Answer deprecations

[jamesbraza]

Seen in CI logs (link):

tests/test_configs.py: 2 warnings
tests/test_paperqa.py: 26 warnings
tests/test_cli.py: 10 warnings
tests/test_agents.py: 2 warnings
  /home/runner/work/paper-qa/paper-qa/.venv/lib/python3.11/site-packages/pydantic/main.py:212: DeprecationWarning: The 'evidence_detailed_citations' field is deprecated and will be removed in version 6. Adjust 'PromptSettings.context_inner' to remove detailed citations.
    validated_self = self.__pydantic_validator__.validate_python(data, self_instance=self)

tests/test_paperqa.py::test_answer_rename
  /home/runner/work/paper-qa/paper-qa/tests/test_paperqa.py:1136: DeprecationWarning: The 'Answer' class is deprecated and will be removed in future versions. Use 'PQASession' instead.
    answer = Answer(question="")

This PR:

• Resolves Answer deprecation from Renamed to PQASession type #653 by using recwarn
• Resolves evidence_detailed_citations deprecation from Added configuration to adjust how contexts are displayed #620 in our bundled configs and test suite

[mskarlin]

makes sense 👍