ValueError when creating NDArray with shape=1 and large blocks/chunks

[Jacc4224]

Describe the bug
Cannot create a blosc2.NDArray with shape=1 if I specify chunks or blocks larger than 1. The error ValueError: blocks cannot be greater than shape if it is 1 is raised.

To Reproduce
Steps to reproduce the behavior:

import blosc2
import numpy as np

# Define dtype
dt = np.int64

# Create an array (shape=1) causes crash
expected_size = 1_000_000
c, b = compute_chunks_blocks((expected_size,))
my_array = blosc2.zeros(shape=1, dtype = dt , chunks=c, blocks=b)

Output error:

Traceback (most recent call last):
  File "/home/jorge/PycharmProjects/python-blosc2/src/ctable_pruebas_2.py", line 693, in <module>
    tabla = CTable(RowModel)
            ^^^^^^^^^^^^^^^^
  File "/home/jorge/PycharmProjects/python-blosc2/src/ctable_pruebas_2.py", line 94, in __init__
    self._valid_rows = blosc2.zeros(shape=1, dtype = np.bool_ , chunks=c, blocks=b)
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/jorge/PycharmProjects/python-blosc2/src/blosc2/ndarray.py", line 5015, in zeros
    chunks, blocks = compute_chunks_blocks(shape, chunks, blocks, dtype, **kwargs)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/jorge/PycharmProjects/python-blosc2/src/blosc2/core.py", line 1565, in compute_chunks_blocks
    raise ValueError("blocks cannot be greater than shape if it is 1")
ValueError: blocks cannot be greater than shape if it is 1

Process finished with exit code 1

Expected behavior
Should be able to create an array with shape=1.

Desktop (please complete the following information):

• Python 3.12.4
• Blosc2 version: 4.0.0-b2.dev0
• OS: Ubuntu 24.04.3 LTS

Additional context
This seems to be an inconsistent restriction specific to shape=1.
If the shape changes from shape=1 to shape=2 in the exact same code above, it works perfectly fine even though the blocks are still much larger than the shape.