BUG: make clip(x) return a copy

[ev-br]

Make it follow numpy 2.x, and all array-api-compat wrapped namespaces.

cross-ref data-apis/array-api-compat#382 for a test of wrapped namespaces.

Reference behavior:

In [1]: import numpy as np

In [2]: np.__version__
Out[2]: '2.3.5'

In [3]: x = np.arange(8)

In [4]: y = np.clip(x)

In [5]: y[1] = 42

In [6]: y
Out[6]: array([ 0, 42,  2,  3,  4,  5,  6,  7])

In [7]: x
Out[7]: array([0, 1, 2, 3, 4, 5, 6, 7])