message: Actually send `slug`
diff: @@ -23,8 +23,8 @@ import invalidChangedFiles from '../ui/messages/warnings/invalidChangedFiles';
  import isRebuild from '../ui/messages/warnings/isRebuild';
  const TesterSkipBuildMutation = `
  - mutation TesterSkipBuildMutation($commit: String!, $branch: String) {
  - skipBuild(commit: $commit, branch: $branch)
  + mutation TesterSkipBuildMutation($commit: String!, $branch: String, $slug: String) {
  + skipBuild(commit: $commit, branch: $branch, slug: $slug)
  }
  `;
  