Updates cert-manager to v1.3

Signed-off-by: joshvanl <vleeuwenjoshua@gmail.com>

go.mod

@@ -3,22 +3,14 @@ module github.com/smallstep/step-issuer
 go 1.13
 
 require (
-	github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d // indirect
-	github.com/go-logr/logr v0.1.0
-	github.com/google/go-cmp v0.4.0 // indirect
-	github.com/imdario/mergo v0.3.8 // indirect
-	github.com/jetstack/cert-manager v0.13.1
-	github.com/manifoldco/promptui v0.3.2 // indirect
-	github.com/nicksnyder/go-i18n v1.10.1 // indirect
-	github.com/onsi/ginkgo v1.11.0
-	github.com/onsi/gomega v1.8.1
+	github.com/go-logr/logr v0.3.0
+	github.com/jetstack/cert-manager v1.3.0
+	github.com/onsi/ginkgo v1.14.1
+	github.com/onsi/gomega v1.10.2
 	github.com/smallstep/certificates v0.14.2
-	golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa // indirect
-	golang.org/x/sys v0.0.0-20200117145432-59e60aa80a0c // indirect
-	gopkg.in/alecthomas/kingpin.v3-unstable v3.0.0-20191105091915-95d230a53780 // indirect
-	k8s.io/api v0.17.0
-	k8s.io/apimachinery v0.17.0
-	k8s.io/client-go v0.17.0
-	k8s.io/utils v0.0.0-20191114184206-e782cd3c129f
-	sigs.k8s.io/controller-runtime v0.4.0
+	k8s.io/api v0.20.2
+	k8s.io/apimachinery v0.20.2
+	k8s.io/client-go v0.20.2
+	k8s.io/utils v0.0.0-20210111153108-fddb29f9d009
+	sigs.k8s.io/controller-runtime v0.8.3
 )