package/redis: bump to v6.2.2

From the release notes:
================================================================================
Redis 6.2.2 Released Mon April 19 19:00:00 IST 2021
================================================================================

Upgrade urgency: HIGH, if you're using ACL and pub/sub, CONFIG REWRITE, or
suffering from performance regression.

See https://github.com/redis/redis/blob/6.2.2/00-RELEASENOTES

Signed-off-by: Titouan Christophe <titouanchristophe@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/redis/redis.hash

@@ -1,5 +1,5 @@
 # From https://github.com/redis/redis-hashes/blob/master/README
-sha256  cd222505012cce20b25682fca931ec93bd21ae92cb4abfe742cf7b76aa907520  redis-6.2.1.tar.gz
+sha256  7a260bb74860f1b88c3d5942bf8ba60ca59f121c6dce42d3017bed6add0b9535  redis-6.2.2.tar.gz
 
 # Locally calculated
 sha256  97f0a15b7bbae580d2609dad2e11f1956ae167be296ab60f4691ab9c30ee9828  COPYING

package/redis/redis.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-REDIS_VERSION = 6.2.1
+REDIS_VERSION = 6.2.2
 REDIS_SITE = http://download.redis.io/releases
 REDIS_LICENSE = BSD-3-Clause (core); MIT and BSD family licenses (Bundled components)
 REDIS_LICENSE_FILES = COPYING