bump controller-runtime to 0.8.0 (#49)

bump controller-runtime version

go.mod

@@ -5,12 +5,11 @@ go 1.15
 require (
 	github.com/onsi/ginkgo v1.14.1
 	github.com/onsi/gomega v1.10.2
-	github.com/operator-framework/api v0.4.0
+	github.com/operator-framework/api v0.5.2
 	github.com/prometheus/client_golang v1.7.1
 	github.com/prometheus/client_model v0.2.0
-	k8s.io/api v0.19.4
-	k8s.io/apimachinery v0.19.4
-	k8s.io/client-go v0.19.4
-	k8s.io/component-base v0.19.4 // indirect
-	sigs.k8s.io/controller-runtime v0.7.0
+	k8s.io/api v0.20.1
+	k8s.io/apimachinery v0.20.1
+	k8s.io/client-go v0.20.1
+	sigs.k8s.io/controller-runtime v0.8.0
 )