Drop numpy < 2

[Armavica]

Description

If we follow https://scientific-python.org/specs/spec-0000/ numpy < 2 should be dropped around September 2025.

[maresb]

I'm confused... isn't numpy<2 dropped as of #1194?

[Armavica]

No, that PR enabled numpy >= 2 but we are still supporting >= 1.17

[maresb]

Ha, I see my misunderstanding now. I originally read it as "drop the <2 constraint from the version specification" but you meant "remove support for numpy versions <2", which now seems obvious to me. This is pretty funny.