numpy: update to version 2.2.1. (#11534)

Known incompatibilities on-tree were already solved, and I was able to build
scipy 1.15.1 against this new version (updated scipy recipe still WIP).

If anything breaks, is surely on outdated software, and we should fix that
instead of keeping numpy on an older version.

dev-python/numpy/patches/numpy-2.2.1.patchset

@@ -0,0 +1,29 @@
+From a3bc3cfbeea148e308b1202d629d94872737365c Mon Sep 17 00:00:00 2001
+From: Oscar Lesta <oscar.lesta@gmail.com>
+Date: Tue, 24 Dec 2024 15:21:22 -0300
+Subject: Fix build on Haiku.
+
+
+diff --git a/numpy/_core/src/umath/string_buffer.h b/numpy/_core/src/umath/string_buffer.h
+index ae89ede..d756a0f 100644
+--- a/numpy/_core/src/umath/string_buffer.h
++++ b/numpy/_core/src/umath/string_buffer.h
+@@ -14,6 +14,15 @@
+ #include "string_fastsearch.h"
+ #include "gil_utils.h"
+ 
++#ifdef __HAIKU__
++	#undef isalnum
++	#undef isalpha
++	#undef isdigit
++	#undef islower
++	#undef isspace
++	#undef isupper
++#endif
++
+ #define CHECK_OVERFLOW(index) if (buf + (index) >= after) return 0
+ #define MSB(val) ((val) >> 7 & 1)
+ 
+-- 
+2.45.2
+