package/nettle: bump version to 3.9.1

Release notes:
https://lists.gnu.org/archive/html/info-gnu/2023-05/msg00007.html
https://lists.gnu.org/archive/html/info-gnu/2023-06/msg00000.html

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/nettle/nettle.hash

@@ -1,6 +1,6 @@
 # Locally calculated after checking pgp signature
-# https://ftp.gnu.org/gnu/nettle/nettle-3.8.1.tar.gz.sig
-sha256  364f3e2b77cd7dcde83fd7c45219c834e54b0c75e428b6f894a23d12dd41cbfe  nettle-3.8.1.tar.gz
+# https://ftp.gnu.org/gnu/nettle/nettle-3.9.1.tar.gz.sig
+sha256  ccfeff981b0ca71bbd6fbcb054f407c60ffb644389a5be80d6716d5b550c6ce3  nettle-3.9.1.tar.gz
 # Locally calculated
 sha256  a853c2ffec17057872340eee242ae4d96cbf2b520ae27d903e1b2fef1a5f9d1c  COPYING.LESSERv3
 sha256  8177f97513213526df2cf6184d8ff986c675afb514d4e68a404010521b880643  COPYINGv2

package/nettle/nettle.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-NETTLE_VERSION = 3.8.1
+NETTLE_VERSION = 3.9.1
 NETTLE_SITE = https://ftp.gnu.org/gnu/nettle
 NETTLE_DEPENDENCIES = gmp
 NETTLE_INSTALL_STAGING = YES