`test_linalg.test_matrix_transpose()` calls `asarray` on nested sequence of arrays

[mdhaber]

According to the standard, asarray must support nested sequences of Python scalars. However, test_matrix_transpose ultimately calls asarray on a list of lists of arrays:

array-api-tests/array_api_tests/test_linalg.py

Lines 516 to 522 in 434a419

	def _test_matrix_transpose(namespace, x):
	matrix_transpose = namespace.matrix_transpose
	res = matrix_transpose(x)
	true_val = lambda a: _array_module.asarray([[a[i, j] for i in
	range(a.shape[0])] for j in
	range(a.shape[1])],
	dtype=a.dtype)

Crossref gh-142.