package/docker-engine: security bump to version 20.10.21

Partial mitigations for CVE-2022-39253 Git vulnerability and other fixes:

https://github.com/moby/moby/releases/tag/v20.10.21

Signed-off-by: Christian Stewart <christian@paral.in>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 309bc5d2d4b0f3ca133b40e36ee949411b3d532d)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/docker-engine/docker-engine.hash

@@ -1,3 +1,3 @@
 # Locally calculated
-sha256  228caadac1b37a5ba310eb25418cf1fdd8878336f1d8faf0a2daa87fcc577577  docker-engine-20.10.19.tar.gz
+sha256  61f4c3a2d0426e1bbbda1b0e5dd33ec203776f7d99d1a61522c77c04c4ed09fe  docker-engine-20.10.21.tar.gz
 sha256  7c87873291f289713ac5df48b1f2010eb6963752bbd6b530416ab99fc37914a8  LICENSE

package/docker-engine/docker-engine.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-DOCKER_ENGINE_VERSION = 20.10.19
+DOCKER_ENGINE_VERSION = 20.10.21
 DOCKER_ENGINE_SITE = $(call github,moby,moby,v$(DOCKER_ENGINE_VERSION))
 
 DOCKER_ENGINE_LICENSE = Apache-2.0