Addon registry: Update registry image from 2.8.1 to 2.8.3

Author: minikube-bot

Diff for: pkg/minikube/assets/addons.go

@@ -405,7 +405,7 @@ var Addons = map[string]*Addon{
 			"registry-proxy.yaml",
 			"0640"),
 	}, false, "registry", "minikube", "", "", map[string]string{
-		"Registry":          "registry:2.8.1@sha256:83bb78d7b28f1ac99c68133af32c93e9a1c149bcd3cb6e683a3ee56e312f1c96",
+		"Registry":          "registry:2.8.3@sha256:12a6ddd56d2de5611ff0d9735ac0ac1d1e44073c7d042477329e589c46867e4e",
 		"KubeRegistryProxy": "k8s-minikube/kube-registry-proxy:0.0.5@sha256:f107ecd58728a2df5f2bb7e087f65f5363d0019b1e1fd476e4ef16065f44abfb",
 	}, map[string]string{
 		"KubeRegistryProxy": "gcr.io",