test: remove intermediate cast

Author: jcarpent

unittest/python/test_user_type.py

@@ -9,7 +9,7 @@
 
 def test(dtype):
     rng = np.random.default_rng()
-    mat = np.array(np.ones((rows, cols)).astype(np.int32), dtype=dtype)
+    mat = np.array(np.ones((rows, cols)), dtype=dtype)
     mat = rng.random((rows, cols)).astype(dtype)
     mat_copy = mat.copy()
     assert (mat == mat_copy).all()