DOC: Fix migration note for alltrue and sometrue

[mtsokol]

Hi @ngoldbaum,

I think I made a mistake in #26517 as pointed out it in astral-sh/ruff#12416.

np.sometrue and np.alltrue should be mapped to np.any and np.all instead of Python builtins any/all. (It could be also backported).

[mtsokol]

@rgommers I see that I took it from the deprecation message added here: 9990f98

I think in:

    .. deprecated:: 1.25.0
        ``sometrue`` is deprecated as of NumPy 1.25.0, and will be
        removed in NumPy 2.0. Please use `any` instead.

and

    .. deprecated:: 1.25.0
        ``alltrue`` is deprecated as of NumPy 1.25.0, and will be
        removed in NumPy 2.0. Please use `all` instead.

you meant np.all and np.any, not the Python builtins, right? As the release note states.

[rgommers]

LGTM, thanks @mtsokol.

you meant np.all and np.any, not the Python builtins, right? As the release note states.

Yes indeed. That seemed clear to me even without the np. - I think all the surrounding notes with the np. included were written later. Nevertheless, this PR makes it more clear, so in it goes.

[rgommers]

Certainly not a bug I'd say - changed to DOC:

[rgommers]

Backporting sounds fine to me, in case we do a 2.0.2 release - label added.