Update deps for k8s, cni and golang (#1030)

* go.mod: Update k8s dependencies to 0.20.2

* go.mod: Update coreos/iptables-0.5.0 cni/plugins-0.9.1

* Makefile: Update container image

Makefile

@@ -18,7 +18,7 @@ DOCKER=$(if $(or $(IN_DOCKER_GROUP),$(IS_ROOT),$(OSX)),docker,sudo docker)
 MAKEFILE_DIR=$(dir $(realpath $(firstword $(MAKEFILE_LIST))))
 UPSTREAM_IMPORT_PATH=$(GOPATH)/src/github.com/cloudnativelabs/kube-router/
 BUILD_IN_DOCKER?=true
-DOCKER_BUILD_IMAGE?=golang:1.15.5-alpine3.12
+DOCKER_BUILD_IMAGE?=golang:1.15.8-alpine3.12
 DOCKER_LINT_IMAGE?=golangci/golangci-lint:v1.27.0
 QEMU_IMAGE?=multiarch/qemu-user-static
 ifeq ($(GOARCH), arm)

go.mod

@@ -3,9 +3,9 @@ module github.com/cloudnativelabs/kube-router
 require (
 	github.com/Microsoft/go-winio v0.4.14 // indirect
 	github.com/aws/aws-sdk-go v1.13.32
-	github.com/containernetworking/cni v0.8.0
-	github.com/containernetworking/plugins v0.9.0
-	github.com/coreos/go-iptables v0.4.5
+	github.com/containernetworking/cni v0.8.1
+	github.com/containernetworking/plugins v0.9.1
+	github.com/coreos/go-iptables v0.5.0
 	github.com/dgryski/go-farm v0.0.0-20180109070241-2de33835d102 // indirect
 	github.com/docker/distribution v0.0.0-20170524205824-1e2f10eb6574 // indirect
 	github.com/docker/docker v0.0.0-20180414165938-5c2e6064a1c5
@@ -14,13 +14,12 @@ require (
 	github.com/eapache/queue v1.1.0 // indirect
 	github.com/go-ini/ini v1.35.0 // indirect
 	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b
-	github.com/golang/protobuf v1.4.2
+	github.com/golang/protobuf v1.4.3
 	github.com/gotestyourself/gotestyourself v2.2.0+incompatible // indirect
 	github.com/hashicorp/hcl v0.0.0-20180404174102-ef8a98b0bbce // indirect
 	github.com/jmespath/go-jmespath v0.0.0-20160202185014-0b12d6b521d8 // indirect
 	github.com/k-sone/critbitgo v1.4.0 // indirect
 	github.com/magiconair/properties v1.7.6 // indirect
-	github.com/mitchellh/mapstructure v0.0.0-20180220230111-00c29f56e238 // indirect
 	github.com/moby/ipvs v1.0.1
 	github.com/onsi/ginkgo v1.12.1
 	github.com/onsi/gomega v1.10.3
@@ -35,14 +34,14 @@ require (
 	github.com/spf13/pflag v1.0.5
 	github.com/vishvananda/netlink v1.1.1-0.20201029203352-d40f9887b852
 	github.com/vishvananda/netns v0.0.0-20200728191858-db3c7e526aae
-	golang.org/x/net v0.0.0-20201006153459-a7d1128ccaa0
+	golang.org/x/net v0.0.0-20201110031124-69a78807bb2b
 	google.golang.org/grpc v1.27.1
 	gopkg.in/ini.v1 v1.61.0 // indirect
 	gotest.tools v2.2.0+incompatible // indirect
-	k8s.io/api v0.18.8
-	k8s.io/apimachinery v0.18.8
-	k8s.io/client-go v0.18.8
-	k8s.io/cri-api v0.18.8
+	k8s.io/api v0.20.2
+	k8s.io/apimachinery v0.20.2
+	k8s.io/client-go v0.20.2
+	k8s.io/cri-api v0.20.2
 )
 
 go 1.13