TST: suppress 1485 warnings issued by xml parser (pandas-dev#28514)

Author: jbrockmendel

pandas/tests/io/excel/__init__.py

@@ -0,0 +1,6 @@
+import pytest
+
+pytestmark = pytest.mark.filterwarnings(
+    # Looks like tree.getiterator is deprecated in favor of tree.iter
+    "ignore:This method will be removed in future versions:PendingDeprecationWarning"
+)