gettext: Update to version 0.22.4

gettext: Update to version 0.22.4

- Update from version 0.22 to 0.22.4
- Update of rootfile
- Changelog
    0.22.4
	* Bug fixes:
	  - AM_GNU_GETTEXT now recognizes a statically built libintl on macOS and AIX.
	  - Build fixes on AIX.
    0.22.3
	* Portability:
	  - The libintl library now works on macOS 14.  (Older versions of libintl
	    crash on macOS 14, due to an incompatible change in macOS.)
    0.22.2
	* Bug fixes:
	  - The libintl shared library now exports again some symbols that were
	    accidentally missing.
	    <https://savannah.gnu.org/bugs/index.php?64323>
	    This bug was introduced in version 0.22.
    0.22.1
	* Bug fixes:
	  - xgettext's processing of large Perl files may have led to errors
	    <https://savannah.gnu.org/bugs/index.php?64552>
	  - "xgettext --join-existing" could encounter errors.
	    <https://savannah.gnu.org/bugs/index.php?64490>
	  These bugs were introduced in version 0.22.
	* Portability:
	  - Building on Android is now supported.

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>