makefile: update default go version to 1.18.1

go1.18.1 (released 2022-04-12) includes security fixes to the crypto/elliptic,
crypto/x509, and encoding/pem packages, as well as bug fixes to the compiler,
linker, runtime, the go command, vet, and the bytes, crypto/x509, and go/types
packages. See the Go 1.18.1 milestone on the issue tracker for details:

https://github.com/golang/go/issues?q=milestone%3AGo1.18.1+label%3ACherryPickApproved

Includes fixes for:

- CVE-2022-24675 (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24675)
- CVE-2022-27536 (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-27536)
- CVE-2022-28327 (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28327)

Signed-off-by: Sebastiaan van Stijn <[email protected]>

Author: thaJeztah

common.mk

@@ -17,7 +17,7 @@ CHOWN:=docker run --rm -v $(CURDIR):/v -w /v alpine chown
 DEFAULT_PRODUCT_LICENSE:=Community Engine
 PACKAGER_NAME?=
 DOCKER_GITCOMMIT:=abcdefg
-GO_VERSION:=1.18.0
+GO_VERSION:=1.18.1
 PLATFORM=Docker Engine - Community
 SHELL:=/bin/bash
 VERSION?=0.0.1-dev