Avoid local Mac issues for test_bodo_nan (#2237)

<!--
Thanks for opening a pull request!
-->

<!-- In the case this PR will resolve an issue, please replace
${GITHUB_ISSUE_ID} below with the actual Github issue id. -->
Closes #2225.

# Rationale for this change

Some Mac laptops have MPI initialization issues that this fixes.

# Are these changes tested?
Tested on a Mac laptop that used to fail.

# Are there any user-facing changes?

<!-- In the case of user-facing changes, please add the changelog label.
-->
No.

---------

Co-authored-by: Kevin Liu <kevinjqliu@users.noreply.github.com>

Author: ehsantn

tests/integration/test_reads.py

@@ -342,7 +342,11 @@ def test_daft_nan_rewritten(catalog: Catalog) -> None:
 @pytest.mark.integration
 @pytest.mark.filterwarnings("ignore")
 @pytest.mark.parametrize("catalog", [pytest.lazy_fixture("session_catalog_hive"), pytest.lazy_fixture("session_catalog")])
-def test_bodo_nan(catalog: Catalog) -> None:
+def test_bodo_nan(catalog: Catalog, monkeypatch: pytest.MonkeyPatch) -> None:
+    # Avoid local Mac issues (see https://github.com/apache/iceberg-python/issues/2225)
+    monkeypatch.setenv("BODO_DATAFRAME_LIBRARY_RUN_PARALLEL", "0")
+    monkeypatch.setenv("FI_PROVIDER", "tcp")
+
     table_test_null_nan_rewritten = catalog.load_table("default.test_null_nan_rewritten")
     df = table_test_null_nan_rewritten.to_bodo()
     assert len(df) == 3