Increased retry count for test_fileio_reader_pdf and updated assertio…

…n to print better

tests/test_paperqa.py

@@ -837,13 +837,15 @@ def test_pdf_reader_match_doc_details(stub_data_dir: Path) -> None:
     assert "yes" in answer.answer or "Yes" in answer.answer
 
 
-@pytest.mark.flaky(reruns=3, only_rerun=["AssertionError"])
+@pytest.mark.flaky(reruns=5, only_rerun=["AssertionError"])
 def test_fileio_reader_pdf(stub_data_dir: Path) -> None:
     with (stub_data_dir / "paper.pdf").open("rb") as f:
         docs = Docs()
         docs.add_file(f, "Wellawatte et al, XAI Review, 2023")
         answer = docs.query("Are counterfactuals actionable?[yes/no]")
-        assert "yes" in answer.answer or "Yes" in answer.answer
+        assert any(
+            w in answer.answer for w in ("yes", "Yes")
+        ), f"Incorrect answer: {answer.answer}"
 
 
 def test_fileio_reader_txt(stub_data_dir: Path) -> None: