package/libidn2: bump to version 2.3.7

https://gitlab.com/libidn/libidn2/-/blob/v2.3.7/NEWS

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/libidn2/libidn2.hash

@@ -1,5 +1,5 @@
 # Calculated locally after checking signature
-sha256  93caba72b4e051d1f8d4f5a076ab63c99b77faee019b72b9783b267986dbb45f  libidn2-2.3.4.tar.gz
+sha256  4c21a791b610b9519b9d0e12b8097bf2f359b12f8dd92647611a929e6bfd7d64  libidn2-2.3.7.tar.gz
 
 # Hash for license files:
 sha256  73483f797a83373fca1b968c11785b98c4fc4803cdc7d3210811ca8b075d6d76  COPYING

package/libidn2/libidn2.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBIDN2_VERSION = 2.3.4
+LIBIDN2_VERSION = 2.3.7
 LIBIDN2_SITE = $(BR2_GNU_MIRROR)/libidn
 LIBIDN2_LICENSE = GPL-2.0+ or LGPL-3.0+ (library)
 LIBIDN2_LICENSE_FILES = COPYING COPYINGv2 COPYING.LESSERv3 COPYING.unicode