Merge pull request #419 from thaJeztah/19.03_backport_bump_golang_1.12.15

[19.03 backport] Update Golang 1.12.15
Upstream-commit: 57fdcf8d98f55850be59c45f342fcc42f5f424f9
Component: packaging

Author: thaJeztah

components/packaging/common.mk

@@ -2,7 +2,7 @@ ARCH=$(shell uname -m)
 BUILDTIME=$(shell date -u -d "@$${SOURCE_DATE_EPOCH:-$$(date +%s)}" --rfc-3339 ns 2> /dev/null | sed -e 's/ /T/')
 DEFAULT_PRODUCT_LICENSE:=Community Engine
 DOCKER_GITCOMMIT:=abcdefg
-GO_VERSION:=1.12.12
+GO_VERSION:=1.12.15
 PLATFORM=Docker Engine - Community
 SHELL:=/bin/bash
 VERSION?=0.0.0-dev