Add a proper exception handling for nested lists in `dpnp.repeat`

[antonwolfy]

import dpnp as np

np.__version__
# Out: '0.21.0dev1+27.gfdb1c53d735.dirty'

x = np.array([3])
np.repeat(x, [[4]])
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Cell In[20], line 1
----> 1 np.repeat(x, [[4]])

File ~/code/dpnp/dpnp/dpnp_iface_manipulation.py:2841, in repeat(a, repeats, axis)
   2838     a = dpnp.ravel(a)
   2840 usm_arr = dpnp.get_usm_ndarray(a)
-> 2841 usm_res = dpt.repeat(usm_arr, repeats, axis=axis)
   2842 return dpnp_array._create_from_usm_ndarray(usm_res)

File ~/code/dpnp/dpnp/tensor/_manipulation_functions.py:631, in repeat(x, repeats, axis)
    629 if len_reps == 1:
    630     repeats = repeats[0]
--> 631     if repeats < 0:
    632         raise ValueError("`repeats` elements must be positive")
    633     scalar = True

TypeError: '<' not supported between instances of 'list' and 'int'

while NumPy raising more explicit exception:

np.__version__
# Out: '2.5.0'

np.repeat(x, [[4]])
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
Cell In[24], line 1
----> 1 np.repeat(x, [[4]])

File ~/.local/share/mamba/envs/dpnp_dev/lib/python3.13/site-packages/numpy/_core/fromnumeric.py:481, in repeat(a, repeats, axis)
    437 @array_function_dispatch(_repeat_dispatcher)
    438 def repeat(a, repeats, axis=None):
    439     """
    440     Repeat each element of an array after themselves
    441
   (...)    479
    480     """
--> 481     return _wrapfunc(a, 'repeat', repeats, axis=axis)

File ~/.local/share/mamba/envs/dpnp_dev/lib/python3.13/site-packages/numpy/_core/fromnumeric.py:54, in _wrapfunc(obj, method, *args, **kwds)
     51     return _wrapit(obj, method, *args, **kwds)
     53 try:
---> 54     return bound(*args, **kwds)
     55 except TypeError:
     56     # A TypeError occurs if the object does have such a method in its
     57     # class, but its signature is not identical to that of NumPy's. This
   (...)     61     # Call _wrapit from within the except clause to ensure a potential
     62     # exception has a traceback chain.
     63     return _wrapit(obj, method, *args, **kwds)

ValueError: setting an array element with a sequence. The requested array would exceed the maximum number of dimension of 1.