bump k8s to 1.21 (#64)

Signed-off-by: varshaprasad96 <[email protected]>

Author: varshaprasad96

go.mod

@@ -3,13 +3,13 @@ module github.com/operator-framework/operator-lib
 go 1.15
 
 require (
-	github.com/onsi/ginkgo v1.14.1
-	github.com/onsi/gomega v1.10.2
-	github.com/operator-framework/api v0.5.2
-	github.com/prometheus/client_golang v1.7.1
+	github.com/onsi/ginkgo v1.16.4
+	github.com/onsi/gomega v1.13.0
+	github.com/operator-framework/api v0.10.0
+	github.com/prometheus/client_golang v1.11.0
 	github.com/prometheus/client_model v0.2.0
-	k8s.io/api v0.20.2
-	k8s.io/apimachinery v0.20.2
-	k8s.io/client-go v0.20.2
-	sigs.k8s.io/controller-runtime v0.8.3
+	k8s.io/api v0.21.1
+	k8s.io/apimachinery v0.21.1
+	k8s.io/client-go v0.21.1
+	sigs.k8s.io/controller-runtime v0.9.0
 )