redis: bump to version 4.0.11

>From the release notes
(https://raw.githubusercontent.com/antirez/redis/4.0/00-RELEASENOTES):

Upgrade urgency HIGH: not critical but very important bugs fixed.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Reviewed-by: Titouan Christophe <titouan.christophe@railnova.eu>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/redis/redis.hash

@@ -1,5 +1,5 @@
 # From https://github.com/antirez/redis-hashes/blob/master/README
-sha256 1db67435a704f8d18aec9b9637b373c34aa233d65b6e174bdac4c1b161f38ca4  redis-4.0.10.tar.gz
+sha256 fc53e73ae7586bcdacb4b63875d1ff04f68c5474c1ddeda78f00e5ae2eed1bbb  redis-4.0.11.tar.gz
 
 # Locally calculated
 sha256 cbf420a3672475a6e2765e3c0984c1f81efe0212afb94a3c998ee63bfd661063  COPYING

package/redis/redis.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-REDIS_VERSION = 4.0.10
+REDIS_VERSION = 4.0.11
 REDIS_SITE = http://download.redis.io/releases
 REDIS_LICENSE = BSD-3-Clause (core); MIT and BSD family licenses (Bundled components)
 REDIS_LICENSE_FILES = COPYING