stdlib/ecr / jamstack: ported to new syntax

Signed-off-by: Sam Alba <sam.alba@gmail.com>

stdlib/aws/ecr/ecr.cue

@@ -7,30 +7,21 @@ import (
 
 // Credentials retriever for ECR
 #Credentials: {
-
 	// AWS Config
 	config: aws.#Config
 
-	// Target is the ECR image
-	target: string
-
 	out: dagger.#Secret
 
 	// ECR credentials
-	credentials: dagger.#RegistryCredentials & {
-		username: "AWS"
-		secret:   out
-	}
+	username: "AWS"
+	secret:   out
 
 	aws.#Script & {
+		always:   true
 		"config": config
 		export:   "/out"
 		code: """
 			aws ecr get-login-password > /out
 			"""
 	}
-
-	// Authentication for ECR Registries
-	auth: dagger.#RegistryAuth
-	auth: "\(target)": credentials
 }