Add europe-west12 AR registry

Region reveal stuff

Author: MeBaranov

config/const.go

@@ -86,6 +86,7 @@ var DefaultARRegistries = [...]string{
 	"europe-west6-docker.pkg.dev",
 	"europe-west8-docker.pkg.dev",
 	"europe-west9-docker.pkg.dev",
+	"europe-west12-docker.pkg.dev",
 	"me-west1-docker.pkg.dev",
 	"northamerica-northeast1-docker.pkg.dev",
 	"northamerica-northeast2-docker.pkg.dev",