[MINOR][TESTS] Enable nullability check in `test_create_dataframe_fro…

…m_arrays`

### What changes were proposed in this pull request?
Enable nullability check in `test_create_dataframe_from_arrays`

### Why are the changes needed?
for test coverage

### Does this PR introduce _any_ user-facing change?
no

### How was this patch tested?
ci

### Was this patch authored or co-authored using generative AI tooling?
no

Closes apache#45473 from zhengruifeng/connect_test_enable_array_schema.

Authored-by: Ruifeng Zheng <ruifengz@apache.org>
Signed-off-by: Ruifeng Zheng <ruifengz@apache.org>

python/pyspark/sql/tests/connect/test_connect_basic.py

@@ -954,8 +954,7 @@ def test_create_dataframe_from_arrays(self):
             cdf = self.connect.createDataFrame(data)
             sdf = self.spark.createDataFrame(data)
 
-            # TODO: the nullability is different, need to fix
-            # self.assertEqual(cdf.schema, sdf.schema)
+            self.assertEqual(cdf.schema, sdf.schema)
             self.assertEqual(cdf.collect(), sdf.collect())
 
     def test_timestampe_create_from_rows(self):