gh-91731: Fix typo in pymacro.h (GH-92618)

* Fix typo in pymacro.h

* Update Include/pymacro.h

Co-authored-by: Victor Stinner <[email protected]>

Co-authored-by: Victor Stinner <[email protected]>
(cherry picked from commit 4e6da50)

Co-authored-by: Pablo Galindo Salgado <[email protected]>

Author: miss-islington

Include/pymacro.h

@@ -10,7 +10,7 @@
 #  define static_assert _Static_assert
 #endif
 
-// static_assert is defined in GLIB from version 2.16. Before it requires
+// static_assert is defined in glibc from version 2.16. Before it requires
 // compiler support (gcc >= 4.6) and is called _Static_assert.
 #if (defined(__GLIBC__) \
      && (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 16)) \