[docker-engine]: Update docker engine to 18.09.8 (#3211)

Signed-off-by: Neetha John <[email protected]>

Author: neethajohn

build_debian.sh

@@ -29,7 +29,7 @@
 set -x -e
 
 ## docker engine version (with platform)
-DOCKER_VERSION=5:18.09.2~3-0~debian-stretch
+DOCKER_VERSION=5:18.09.8~3-0~debian-stretch
 LINUX_KERNEL_VERSION=4.9.0-9-2
 
 ## Working directory to prepare the file system