CI: Fix line sep issue in to_csv test (#46024)

Author: phofl

pandas/tests/io/formats/test_to_csv.py

@@ -320,25 +320,19 @@ def test_to_csv_float_ea_float_format(self):
         df = DataFrame({"a": [1.1, 2.02, pd.NA, 6.000006], "b": "c"})
         df["a"] = df["a"].astype("Float64")
         result = df.to_csv(index=False, float_format="%.5f")
-        expected = """a,b
-1.10000,c
-2.02000,c
-,c
-6.00001,c
-"""
+        expected = tm.convert_rows_list_to_csv_str(
+            ["a,b", "1.10000,c", "2.02000,c", ",c", "6.00001,c"]
+        )
         assert result == expected
 
     def test_to_csv_float_ea_no_float_format(self):
         # GH#45991
         df = DataFrame({"a": [1.1, 2.02, pd.NA, 6.000006], "b": "c"})
         df["a"] = df["a"].astype("Float64")
         result = df.to_csv(index=False)
-        expected = """a,b
-1.1,c
-2.02,c
-,c
-6.000006,c
-"""
+        expected = tm.convert_rows_list_to_csv_str(
+            ["a,b", "1.1,c", "2.02,c", ",c", "6.000006,c"]
+        )
         assert result == expected
 
     def test_to_csv_multi_index(self):