message: Change hardcoded master to $defaultBranch
  Since we pass over the defaultBranch argument in our templates, this seems to break because of the hardcoded master values. Probably this affects other providers as well.
diff: @@ -127,7 +127,7 @@ export function createPublishGitlabAction(options: {
  });
  const remoteUrl = (http_url_to_repo as string).replace(/\.git$/, '');
  - const repoContentsUrl = `${remoteUrl}/-/blob/master`;
  + const repoContentsUrl = `${remoteUrl}/-/blob/${defaultBranch}`;
  const gitAuthorInfo = {
  name: config.getOptionalString('scaffolder.defaultAuthor.name'),
  