Error generating labels: wrong number of arguments

Created by @stanhu.

https://sentry.gitlap.com/gitlab/gitlabcom/issues/13720/

ArgumentError: wrong number of arguments (given 1, expected 0)
  lib/gitlab/metrics/instrumentation.rb:153:in `execute'
    def #{name}(#{args_signature})
  lib/gitlab/issues_labels.rb:22:in `block in generate'
    ::Labels::FindOrCreateService.new(project.owner, project).execute(params)
  lib/gitlab/issues_labels.rb:21:in `each'
    labels.each do |params|
  lib/gitlab/issues_labels.rb:21:in `generate'
    labels.each do |params|
  app/controllers/projects/labels_controller.rb:58:in `generate'
    Gitlab::IssuesLabels.generate(@project)
...
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