Enable imgpkg keychains when environment variable is provided

Signed-off-by: Joao Pereira <[email protected]>

go.mod

@@ -4,22 +4,22 @@ go 1.19
 
 require (
 	github.com/bmatcuk/doublestar v1.2.1
-	github.com/cppforlife/cobrautil v0.0.0-20200514214827-bb86e6965d72
+	github.com/cppforlife/cobrautil v0.0.0-20221021151949-d60711905d65
 	github.com/cppforlife/go-cli-ui v0.0.0-20220425131040-94f26b16bc14
 	github.com/gogo/protobuf v1.3.2
-	github.com/google/go-containerregistry v0.11.0
+	github.com/google/go-containerregistry v0.12.1
 	github.com/google/go-github v17.0.0+incompatible
 	github.com/google/go-querystring v1.1.0 // indirect
 	github.com/hashicorp/go-version v1.2.1
 	github.com/k14s/semver/v4 v4.0.1-0.20210701191048-266d47ac6115
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/otiai10/copy v1.2.0
 	github.com/phayes/freeport v0.0.0-20220201140144-74d24b5ae9f5
-	github.com/spf13/cobra v1.5.0
-	github.com/stretchr/testify v1.8.0
-	github.com/vmware-tanzu/carvel-imgpkg v0.33.0
+	github.com/spf13/cobra v1.6.1
+	github.com/stretchr/testify v1.8.1
+	github.com/vmware-tanzu/carvel-imgpkg v0.35.0
 	golang.org/x/crypto v0.3.0
-	golang.org/x/oauth2 v0.0.0-20220718184931-c8730f7fcb92
+	golang.org/x/oauth2 v0.1.0
 	golang.org/x/tools v0.1.12
 	gopkg.in/inf.v0 v0.9.1
 	k8s.io/apimachinery v0.24.3
@@ -28,7 +28,7 @@ require (
 )
 
 require (
-	cloud.google.com/go/compute v1.7.0 // indirect
+	cloud.google.com/go/compute v1.10.0 // indirect
 	github.com/Azure/azure-sdk-for-go v55.0.0+incompatible // indirect
 	github.com/Azure/go-autorest v14.2.0+incompatible // indirect
 	github.com/Azure/go-autorest/autorest v0.11.18 // indirect
@@ -55,14 +55,14 @@ require (
 	github.com/awslabs/amazon-ecr-credential-helper/ecr-login v0.0.0-20220517224237-e6f29200ae04 // indirect
 	github.com/cheggaaa/pb/v3 v3.1.0 // indirect
 	github.com/chrismellard/docker-credential-acr-env v0.0.0-20220327082430-c57b701bfc08 // indirect
-	github.com/containerd/stargz-snapshotter/estargz v0.12.0 // indirect
+	github.com/containerd/stargz-snapshotter/estargz v0.12.1 // indirect
 	github.com/cppforlife/color v1.9.1-0.20200716202919-6706ac40b835 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dimchansky/utfbom v1.1.0 // indirect
-	github.com/docker/cli v20.10.17+incompatible // indirect
+	github.com/docker/cli v20.10.20+incompatible // indirect
 	github.com/docker/distribution v2.8.1+incompatible // indirect
-	github.com/docker/docker v20.10.17+incompatible // indirect
-	github.com/docker/docker-credential-helpers v0.6.4 // indirect
+	github.com/docker/docker v20.10.20+incompatible // indirect
+	github.com/docker/docker-credential-helpers v0.7.0 // indirect
 	github.com/emicklei/go-restful v2.16.0+incompatible // indirect
 	github.com/fatih/color v1.13.0 // indirect
 	github.com/form3tech-oss/jwt-go v3.2.3+incompatible // indirect
@@ -72,37 +72,38 @@ require (
 	github.com/go-openapi/swag v0.19.14 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/google/gofuzz v1.1.0 // indirect
-	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.0.1 // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/klauspost/compress v1.15.8 // indirect
+	github.com/klauspost/compress v1.15.11 // indirect
 	github.com/kr/pretty v0.2.1 // indirect
 	github.com/mailru/easyjson v0.7.6 // indirect
 	github.com/mattn/go-colorable v0.1.12 // indirect
-	github.com/mattn/go-isatty v0.0.16 // indirect
+	github.com/mattn/go-isatty v0.0.17 // indirect
 	github.com/mattn/go-runewidth v0.0.12 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/onsi/ginkgo v1.16.4 // indirect
 	github.com/onsi/gomega v1.18.1 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
-	github.com/opencontainers/image-spec v1.0.3-0.20220114050600-8b9d41f48198 // indirect
+	github.com/opencontainers/image-spec v1.1.0-rc2 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rivo/uniseg v0.2.0 // indirect
 	github.com/sirupsen/logrus v1.9.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/vbatts/tar-split v0.11.2 // indirect
 	github.com/vito/go-interact v1.0.1 // indirect
-	golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4 // indirect
+	golang.org/x/mod v0.6.0 // indirect
 	golang.org/x/net v0.4.0 // indirect
-	golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4 // indirect
-	golang.org/x/sys v0.3.0 // indirect
+	golang.org/x/sync v0.1.0 // indirect
+	golang.org/x/sys v0.4.0 // indirect
 	golang.org/x/term v0.3.0 // indirect
 	golang.org/x/text v0.5.0 // indirect
 	gonum.org/v1/gonum v0.0.0-20190331200053-3d26580ed485 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/protobuf v1.28.0 // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	k8s.io/gengo v0.0.0-20210813121822-485abfe95c7c // indirect