package/docker-cli: bump to version v18.09.4

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 426103703df02b0038cd1524fe5edf530265f771)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/docker-cli/docker-cli.hash

@@ -1,3 +1,3 @@
 # Locally calculated
-sha256	29f3a435bfcd52dbe26f6315ee92bffc0220a537608935a2c3870f6b729fc16e  docker-cli-v18.09.2.tar.gz
+sha256	f9be44f395617f3f75faac69ad90f93c94ee4050c193bfa05eddb520a27c5d44  docker-cli-v18.09.4.tar.gz
 sha256	2d81ea060825006fc8f3fe28aa5dc0ffeb80faf325b612c955229157b8c10dc0  LICENSE

package/docker-cli/docker-cli.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-DOCKER_CLI_VERSION = v18.09.2
+DOCKER_CLI_VERSION = v18.09.4
 DOCKER_CLI_SITE = $(call github,docker,cli,$(DOCKER_CLI_VERSION))
 DOCKER_CLI_WORKSPACE = gopath