test(mysql): enable correlation xpass on 3.9

Author: cpcloud

ibis/backends/tests/test_impure.py

@@ -143,7 +143,11 @@ def test_chained_selections(alltypes, impure):
             lambda _: ibis.uuid().cast(str).contains("a").ifelse(1, 0),
             marks=[
                 *no_uuids,
-                pytest.mark.notyet(["mysql"], reason="instances are correlated"),
+                pytest.mark.notyet(
+                    ["mysql"],
+                    reason="instances are correlated",
+                    strict=sys.version_info[:2] > (3, 9),
+                ),
             ],
             id="uuid",
         ),