Update to go 1.18.6 to address CVE-2022-27664, CVE-2022-32190

From the mailing list:

We have just released Go versions 1.19.1 and 1.18.6, minor point releases.
These minor releases include 2 security fixes following the security policy:

- net/http: handle server errors after sending GOAWAY
  A closing HTTP/2 server connection could hang forever waiting for a clean
  shutdown that was preempted by a subsequent fatal error. This failure mode
  could be exploited to cause a denial of service.

  Thanks to Bahruz Jabiyev, Tommaso Innocenti, Anthony Gavazzi, Steven Sprecher,
  and Kaan Onarlioglu for reporting this.

  This is CVE-2022-27664 and Go issue https://go.dev/issue/54658.

- net/url: JoinPath does not strip relative path components in all circumstances
  JoinPath and URL.JoinPath would not remove `../` path components appended to a
  relative path. For example, `JoinPath("https://go.dev", "../go")` returned the
  URL `https://go.dev/../go`, despite the JoinPath documentation stating that
  `../` path elements are cleaned from the result.

  Thanks to q0jt for reporting this issue.

  This is CVE-2022-32190 and Go issue https://go.dev/issue/54385.

Release notes:

go1.18.6 (released 2022-09-06) includes security fixes to the net/http package,
as well as bug fixes to the compiler, the go command, the pprof command, the
runtime, and the crypto/tls, encoding/xml, and net packages. See the Go 1.18.6
milestone on the issue tracker for details;

https://github.com/golang/go/issues?q=milestone%3AGo1.18.6+label%3ACherryPickApproved

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 1061f74)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Dockerfile

@@ -1,7 +1,7 @@
 # syntax=docker/dockerfile:1
 
 ARG BASE_VARIANT=alpine
-ARG GO_VERSION=1.18.5
+ARG GO_VERSION=1.18.6
 ARG XX_VERSION=1.1.0
 
 FROM --platform=$BUILDPLATFORM tonistiigi/xx:${XX_VERSION} AS xx

appveyor.yml

@@ -4,7 +4,7 @@ clone_folder: c:\gopath\src\github.com\docker\cli
 
 environment:
   GOPATH: c:\gopath
-  GOVERSION: 1.18.5
+  GOVERSION: 1.18.6
   DEPVERSION: v0.4.1
 
 install:

docker-bake.hcl

@@ -1,5 +1,5 @@
 variable "GO_VERSION" {
-    default = "1.18.5"
+    default = "1.18.6"
 }
 variable "VERSION" {
     default = ""

dockerfiles/Dockerfile.binary-native

@@ -1,4 +1,4 @@
-ARG GO_VERSION=1.18.5
+ARG GO_VERSION=1.18.6
 
 FROM    golang:${GO_VERSION}-alpine
 

dockerfiles/Dockerfile.dev

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-ARG GO_VERSION=1.18.5
+ARG GO_VERSION=1.18.6
 
 FROM golang:${GO_VERSION}-alpine AS golang
 ENV  CGO_ENABLED=0

dockerfiles/Dockerfile.e2e

@@ -1,4 +1,4 @@
-ARG GO_VERSION=1.18.5
+ARG GO_VERSION=1.18.6
 
 # Use Debian based image as docker-compose requires glibc.
 FROM golang:${GO_VERSION}-buster

dockerfiles/Dockerfile.lint

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-ARG GO_VERSION=1.18.5
+ARG GO_VERSION=1.18.6
 ARG GOLANGCI_LINT_VERSION=v1.45.2
 
 FROM    golang:${GO_VERSION}-alpine AS build