Fix skip repo ability in push docker artifacts v2

Author: puehringer

.github/workflows/build-docker-artifacts-trigger-push.yml

@@ -82,7 +82,7 @@ jobs:
             const result = customers.map((c) => ({
               repository: process.env.REPOSITORY,
               customer: c,
-              customer_json: JSON.stringify(config.push[c]),
+              customer_json: config.push[c],
               image_tag: imageTagBranchName,
             }));
             console.log(result);