Bug: Array API `capabilities()` should not advertise boolean indexing

[crusaderky]

New in sparse 0.17.0:

>>> import sparse
>>> sparse.__array_namespace_info__().capabilities()
{'boolean indexing': True, 'data-dependent shapes': True, 'max dimensions': 63}

This is not correct.
The Array API defines boolean indexing as x[idx], where both x and idx are arrays.
However, sparse exclusively allows for boolean indexing when idx is an ArrayLike or a numpy array, which is out of the scope of the Array API - the expectation is that all arrays involved in a function belong to the same namespace, with exceptions on specific integration points (buffer interface in asarray, __dlpack__).

Until sparse can accept a sparse boolean index, capabilities should return {'boolean indexing': False, ...}.