Merge pull request kubernetes#23493 from minikube-bot/auto_bump_cloud_spanner_emulator_version

Addon cloud-spanner: Update cloud-spanner-emulator/emulator image from 1.5.55 to 1.5.56

Author: nirs

pkg/minikube/assets/addons.go

@@ -749,7 +749,7 @@ var Addons = map[string]*Addon{
 	"cloud-spanner": NewAddon([]*BinAsset{
 		MustBinAsset(addons.CloudSpanner, "cloud-spanner/deployment.yaml.tmpl", vmpath.GuestAddonsDir, "deployment.yaml", "0640"),
 	}, false, "cloud-spanner", "Google", "", "https://minikube.sigs.k8s.io/docs/handbook/addons/cloud-spanner/", map[string]string{
-		"CloudSpanner": "cloud-spanner-emulator/emulator:1.5.55@sha256:ad54472fe7b161b9214f7f816f304b649a4779e348229c375ac067f5ed5a6422",
+		"CloudSpanner": "cloud-spanner-emulator/emulator:1.5.56@sha256:18a56fd557011e50e1733a9232e8d17ec9bdd7e51f6cf7660f14c234479f4f36",
 	}, map[string]string{
 		"CloudSpanner": "gcr.io",
 	}, nil),