bump containerd dependency (#463)

go.mod

@@ -3,6 +3,7 @@ module github.com/google/ko
 go 1.16
 
 require (
+	github.com/containerd/containerd v1.5.7 // indirect
 	github.com/containerd/stargz-snapshotter/estargz v0.8.0
 	github.com/cpuguy83/go-md2man/v2 v2.0.1 // indirect
 	github.com/docker/docker v20.10.8+incompatible
@@ -12,15 +13,21 @@ require (
 	github.com/go-training/helloworld v0.0.0-20200225145412-ba5f4379d78b
 	github.com/google/go-cmp v0.5.6
 	github.com/google/go-containerregistry v0.6.0
+	github.com/klauspost/compress v1.13.6 // indirect
 	github.com/mattmoor/dep-notify v0.0.0-20190205035814-a45dec370a17
 	github.com/mattn/go-isatty v0.0.13 // indirect
 	github.com/opencontainers/image-spec v1.0.2-0.20210730191737-8e42a01fb1b7
 	github.com/spf13/cobra v1.2.1
 	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.9.0
+	golang.org/x/net v0.0.0-20211007125505-59d4e928ea9d // indirect
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
+	golang.org/x/sys v0.0.0-20211007075335-d3039528d8ac // indirect
+	golang.org/x/text v0.3.7 // indirect
 	golang.org/x/time v0.0.0-20210723032227-1f47c861a9ac // indirect
 	golang.org/x/tools v0.1.6
+	google.golang.org/genproto v0.0.0-20211005153810-c76a74d43a8e // indirect
+	google.golang.org/grpc v1.41.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b // indirect
 	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b
 	k8s.io/apimachinery v0.22.2