package/which: bump version to 2.23

Release notes:
https://cgit.git.savannah.gnu.org/cgit/which.git/tree/NEWS?id=3e2c8f8acc3a333b66b06de234bc9324c6fe5500

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/which/which.hash

@@ -1,4 +1,4 @@
 # Locally calculated after checking pgp signature
-sha256  f4a245b94124b377d8b49646bf421f9155d36aa7614b6ebf83705d3ffc76eaad  which-2.21.tar.gz
+sha256  a2c558226fc4d9e4ce331bd2fd3c3f17f955115d2c00e447618a4ef9978a2a73  which-2.23.tar.gz
 # Locally computed
 sha256  8ceb4b9ee5adedde47b31e975c1d90c73ad27b6b165a1dcd80c7c545eb65b903  COPYING

package/which/which.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-WHICH_VERSION = 2.21
+WHICH_VERSION = 2.23
 WHICH_SITE = $(BR2_GNU_MIRROR)/which
 WHICH_LICENSE = GPL-3.0+
 WHICH_LICENSE_FILES = COPYING