fix: update pack dependency

Signed-off-by: Matej Vasek <mvasek@redhat.com>

Author: matejvasek

go.mod

@@ -3,11 +3,11 @@ module github.com/boson-project/func
 go 1.14
 
 require (
-	github.com/buildpacks/pack v0.14.0
+	github.com/buildpacks/pack v0.16.0
 	github.com/markbates/pkger v0.17.1
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/ory/viper v1.7.4
-	github.com/spf13/cobra v1.0.1-0.20201006035406-b97b5ead31f7
+	github.com/spf13/cobra v1.1.1
 	gopkg.in/yaml.v2 v2.3.0
 	k8s.io/api v0.18.8
 	k8s.io/apimachinery v0.19.1
@@ -23,13 +23,6 @@ replace (
 	// packages (and old docker versions)
 	github.com/Sirupsen/logrus => github.com/sirupsen/logrus v1.7.0
 
-	// This is required to pin the docker module to that version that build packs are requiring
-	// Otherwise it's overwritten by knative-dev/test-infra to a version v.1.13 that is higher
-	github.com/docker/docker => github.com/docker/docker v1.4.2-0.20200221181110-62bd5a33f707
-
-	// Needed for macos
-	golang.org/x/sys => golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527
-
 	// Nail down k8 deps to align with transisitive deps
 	k8s.io/apimachinery => k8s.io/apimachinery v0.18.8
 	k8s.io/client-go => k8s.io/client-go v0.18.8