Update kapp to go 1.16 (#223)

* update kapp to go 1.16

* update go version in github action

.github/workflows/test-gh.yml

@@ -13,7 +13,7 @@ jobs:
     - name: Set up Go 1.x
       uses: actions/setup-go@v1
       with:
-        go-version: "1.13"
+        go-version: "1.16"
     - name: Check out code into the Go module directory
       uses: actions/checkout@v2
       with:

go.mod

@@ -1,6 +1,6 @@
 module github.com/k14s/kapp
 
-go 1.13
+go 1.16
 
 require (
 	github.com/Azure/go-autorest v10.15.0+incompatible // indirect

go.sum

@@ -52,7 +52,6 @@ github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZm
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
-github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
 github.com/ghodss/yaml v1.0.0 h1:wQHKEahhL6wmXdzwWG11gIVCkOv05bNOh+Rxn0yngAk=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=

vendor/modules.txt

@@ -1,28 +1,34 @@
 # cloud.google.com/go v0.46.3
 cloud.google.com/go/compute/metadata
 # github.com/Azure/go-autorest v10.15.0+incompatible
+## explicit
 github.com/Azure/go-autorest/autorest
 github.com/Azure/go-autorest/autorest/adal
 github.com/Azure/go-autorest/autorest/azure
 github.com/Azure/go-autorest/autorest/date
 github.com/Azure/go-autorest/logger
 github.com/Azure/go-autorest/version
 # github.com/cppforlife/cobrautil v0.0.0-20200514214827-bb86e6965d72
+## explicit
 github.com/cppforlife/cobrautil
 # github.com/cppforlife/color v1.9.1-0.20200716202919-6706ac40b835
+## explicit
 github.com/cppforlife/color
 # github.com/cppforlife/go-cli-ui v0.0.0-20200716203538-1e47f820817f
+## explicit
 github.com/cppforlife/go-cli-ui/errors
 github.com/cppforlife/go-cli-ui/ui
 github.com/cppforlife/go-cli-ui/ui/table
 github.com/cppforlife/go-cli-ui/ui/test
 # github.com/cppforlife/go-patch v0.2.0
+## explicit
 github.com/cppforlife/go-patch/patch
 # github.com/davecgh/go-spew v1.1.1
 github.com/davecgh/go-spew/spew
 # github.com/dgrijalva/jwt-go v3.2.0+incompatible
 github.com/dgrijalva/jwt-go
 # github.com/ghodss/yaml v1.0.0
+## explicit
 github.com/ghodss/yaml
 # github.com/gogo/protobuf v1.2.1
 github.com/gogo/protobuf/proto
@@ -38,12 +44,15 @@ github.com/golang/protobuf/ptypes/timestamp
 # github.com/google/btree v1.0.0
 github.com/google/btree
 # github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf
+## explicit
 github.com/google/gofuzz
 # github.com/googleapis/gnostic v0.2.0
+## explicit
 github.com/googleapis/gnostic/OpenAPIv2
 github.com/googleapis/gnostic/compiler
 github.com/googleapis/gnostic/extensions
 # github.com/gophercloud/gophercloud v0.0.0-20180727150635-f8826f28e31a
+## explicit
 github.com/gophercloud/gophercloud
 github.com/gophercloud/gophercloud/openstack
 github.com/gophercloud/gophercloud/openstack/identity/v2/tenants
@@ -52,39 +61,53 @@ github.com/gophercloud/gophercloud/openstack/identity/v3/tokens
 github.com/gophercloud/gophercloud/openstack/utils
 github.com/gophercloud/gophercloud/pagination
 # github.com/gregjones/httpcache v0.0.0-20180305231024-9cad4c3443a7
+## explicit
 github.com/gregjones/httpcache
 github.com/gregjones/httpcache/diskcache
 # github.com/hashicorp/go-version v1.2.0
+## explicit
 github.com/hashicorp/go-version
 # github.com/imdario/mergo v0.3.5
+## explicit
 github.com/imdario/mergo
 # github.com/inconshreveable/mousetrap v1.0.0
 github.com/inconshreveable/mousetrap
 # github.com/json-iterator/go v1.1.6
 github.com/json-iterator/go
 # github.com/k14s/difflib v0.0.0-20200108171459-b101e55e0592
+## explicit
 github.com/k14s/difflib
 # github.com/k14s/kapp-controller v0.1.0
+## explicit
 github.com/k14s/kapp-controller/pkg/apis/kappctrl/v1alpha1
 # github.com/mattn/go-colorable v0.1.4
 github.com/mattn/go-colorable
 # github.com/mattn/go-isatty v0.0.11
 github.com/mattn/go-isatty
 # github.com/mitchellh/go-wordwrap v1.0.0
+## explicit
 github.com/mitchellh/go-wordwrap
 # github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd
 github.com/modern-go/concurrent
 # github.com/modern-go/reflect2 v1.0.1
 github.com/modern-go/reflect2
+# github.com/onsi/ginkgo v1.11.0
+## explicit
+# github.com/onsi/gomega v1.7.0
+## explicit
 # github.com/peterbourgon/diskv v2.0.1+incompatible
+## explicit
 github.com/peterbourgon/diskv
 # github.com/pmezard/go-difflib v1.0.0
 github.com/pmezard/go-difflib/difflib
 # github.com/spf13/cobra v1.1.1
+## explicit
 github.com/spf13/cobra
 # github.com/spf13/pflag v1.0.5
+## explicit
 github.com/spf13/pflag
 # github.com/stretchr/testify v1.7.0
+## explicit
 github.com/stretchr/testify/assert
 github.com/stretchr/testify/require
 # github.com/vito/go-interact v0.0.0-20171111012221-fa338ed9e9ec
@@ -93,6 +116,7 @@ github.com/vito/go-interact/interact/terminal
 # golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5
 golang.org/x/crypto/ssh/terminal
 # golang.org/x/net v0.0.0-20190620200207-3b0461eec859
+## explicit
 golang.org/x/net/context
 golang.org/x/net/context/ctxhttp
 golang.org/x/net/http/httpguts
@@ -158,12 +182,15 @@ google.golang.org/protobuf/types/known/anypb
 google.golang.org/protobuf/types/known/durationpb
 google.golang.org/protobuf/types/known/timestamppb
 # gopkg.in/inf.v0 v0.9.1
+## explicit
 gopkg.in/inf.v0
 # gopkg.in/yaml.v2 v2.2.8
+## explicit
 gopkg.in/yaml.v2
 # gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c
 gopkg.in/yaml.v3
 # k8s.io/api v0.0.0-20180628040859-072894a440bd
+## explicit
 k8s.io/api/admissionregistration/v1alpha1
 k8s.io/api/admissionregistration/v1beta1
 k8s.io/api/apps/v1
@@ -194,6 +221,7 @@ k8s.io/api/storage/v1
 k8s.io/api/storage/v1alpha1
 k8s.io/api/storage/v1beta1
 # k8s.io/apimachinery v0.0.0-20180621070125-103fd098999d
+## explicit
 k8s.io/apimachinery/pkg/api/errors
 k8s.io/apimachinery/pkg/api/meta
 k8s.io/apimachinery/pkg/api/resource
@@ -231,6 +259,7 @@ k8s.io/apimachinery/pkg/version
 k8s.io/apimachinery/pkg/watch
 k8s.io/apimachinery/third_party/forked/golang/reflect
 # k8s.io/client-go v8.0.0+incompatible
+## explicit
 k8s.io/client-go/discovery
 k8s.io/client-go/dynamic
 k8s.io/client-go/kubernetes