sudo: bump to version 1.8.21p2

Switch SITE to https.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/sudo/sudo.hash

@@ -1,2 +1,2 @@
 # From: http://www.sudo.ws/download.html
-sha256 bd42ae1059e935f795c69ea97b3de09fe9410a58a74b5d5e6836eb5067a445d9  sudo-1.8.20p2.tar.gz
+sha256 74c5746cd33a814e2431c39faf0d76f7f8a697379bd073862e3b156cf0d76368  sudo-1.8.21p2.tar.gz

package/sudo/sudo.mk

@@ -4,8 +4,8 @@
 #
 ################################################################################
 
-SUDO_VERSION = 1.8.20p2
-SUDO_SITE = http://www.sudo.ws/sudo/dist
+SUDO_VERSION = 1.8.21p2
+SUDO_SITE = https://www.sudo.ws/sudo/dist
 SUDO_LICENSE = ISC, BSD-3-Clause
 SUDO_LICENSE_FILES = doc/LICENSE
 # This is to avoid sudo's make install from chown()ing files which fails